Square root of a number is the value that returns the original number on multiplied by itself. Finding square root by prime factorisation is an easy method. We need to factories the number under the root and pair them in two. For example, the square root of 9 is √9 = √ (3×3) = 3. We can see, 9 is a perfect square and hence it is easier to ...Oakland, Calif.-based startup Back to the Roots is run by 2 successful entrepreneurs with advice to help you start and grow a product-based company. By clicking "TRY IT", I agree t...3. Multiply the bottom ones place by the top tens number. Take the same number on the bottom and multiply it by the top tens number. Remember to add the number you carried and write the result below the line. For example, with 24 x 24, multiply 4 by 2 and add the 1 you carried. The result below the line should be 96.Algebra. Simplify square root of 8. Tap for more steps... Factor out of . Step 1.2. Rewrite as . Pull terms out from under the radical. The result can be shown in multiple forms. Exact Form: Here is the answer to questions like: Square root of 8.7 | √8.7 or what is the square root of 8.7? Use the square root calculator below to find the square root of any imaginary or real number. See also in this web page a Square Root Table from 1 to 100 as well as the Babylonian Method or Hero's Method.3 Squared. =. = 3 × 3 = 9. "Squared" is often written as a little 2 like this: This says "4 Squared equals 16" (the little 2 means the number appears twice in multiplying, so 4×4 =16) Square Root. A square root goes the other direction: 3 squared is 9, so a square root of 9 is 3. It is like asking: What is the Square Root of 8? Rounding to eight decimal places, the square root of 8 is 2.82842712. The square root of 8 results in a number that when multiplied by itself gives the value 8. Also, the square root of 8 can be written in different ways: Square root of 8 in radical form: \ (\sqrt {8}\) or \ (\sqrt {2}\) Jan 3, 2024 · To determine the square root of a number using the prime factorization method, follow these steps: Step 1: Break down the given number into its prime factors. Step 2: Group the factors into pairs, ensuring that both factors in each pair are the same. Step 3: Select one factor from each pair. Introduction . NCERT Solutions for Class 8 Maths Chapter 6, Square and Square Roots provided by Vedantu, is developed as per the latest syllabus and under strict guidelines set by CBSE board. To understand the concept, students must go through the solutions and the notes related to the solution.Ginger tea is not only refreshing, it’s also considered to be an effective herbal remedy for many health conditions, according to Healthline. Here’s a look at how to make ginger ro...The procedure to use the square root calculator is as follows: Step 1: Enter the number in the respective input field. Step 2: Now click the button “Find Square Root” to get the …So 4x plus 1-- I'm just taking the square root of both sides. You take the square root of both sides, and, of course, you want to take the positive and the negative square root, because 4x plus 1 could be the positive square root of 8, or it could be the negative square root of 8. So 4x plus 1 is equal to the positive or negative square root of 8.In a report released today, Elyse Greenspan from Wells Fargo maintained a Hold rating on Root (ROOT - Research Report), with a price target of $10... In a report released today, El...For example, to check whether 21 is a perfect square or not, let us calculate its square root. √21 = 4.58. As we can see, 4.58 is not a whole number/integer, so, 21 is not a perfect square number. Let us take another example of the number 64 → √64 = 8. We can see that 8 is a whole number, therefore, 64 is a perfect square.Find out how to buy, plant, and grow bare root perennials in your garden. Expert Advice On Improving Your Home Videos Latest View All Guides Latest View All Radio Show Latest View ...Conclusion. To sum up, 8 squared = 8 × 8 = (8) 2 = 64. The exponentiation form is mostly used to denote eight squared. If this article about the square of 8 has been of help to you then please share it by means of the social buttons. And should you want to leave a comment related to 8 squared use the form below. It can be proved as below: Factorization of 8 results in 2 x 4. Taking the square root of the above expression gives: = √ (2 x 4) = (2 x 4) 1 / 2. = 2.828. This shows that 8 is not a perfect square as it has decimal places; hence it is an irrational number. Therefore the above discussion proves that the square root of 8 is equivalent to 2.828. Jan 1, 2024 · To find the square root of 8 using prime factorization, we break down 8 into its prime factors: 2 x 2 x 2. Using two same numbers, we find that 8 has a square root of 2 times itself. 2. Long Division Method. Using the big divide method, we keep making our guess better until it stops changing. Then finally we find out that √8 is around 2.8284. 3. Oakland, Calif.-based startup Back to the Roots is run by 2 successful entrepreneurs with advice to help you start and grow a product-based company. By clicking "TRY IT", I agree t...Aug 17, 2023 · The cube root of -8 is written as \( \sqrt[3]{-8} = -2 \). The cube root of -64 is written as \( \sqrt[3]{-64} = -4 \). Cube Roots Resulting in the Integers 1 Through 10. Cube root of 1 is 1; Cube root of 8 is 2; Cube root of 27 is 3; Cube root of 64 is 4; Cube root of 125 is 5; Cube root of 216 is 6; Cube root of 343 is 7; Cube root of 512 is ... The square root of any natural number, when multiplied by itself, gives the original number n. The square root is the inverse function of finding square. √p q = √p √q. There are two important square roots of a perfect square number n + viz. √n & − √n. Ex: 62 = 36 = √36 = ±6 i.e. +6 & -6.To simplify a square root: make the number inside the square root as small as possible (but still a whole number): Example: √12 is simpler as 2√3. Get your calculator and check if you want: they are both the same value! Here is the rule: when a and b are not negative.Step 4: The product is the square root of the number. Therefore, $\sqrt{1764} = 42$. Note: If the number does not make a pair of similar factors we place them inside the square root symbol. For example, to find the square root of 8. Find the prime factors of 8. Step 2: Form pairs of similar factors. Here, we can make two pairs of similar factors A square root of a number is a value that, when multiplied by itself, gives the number. Example: 4 × 4 = 16, so a square root of 16 is 4. Note that (−4) × (−4) = 16 too, so −4 is also a square root of 16. The symbol is √ which always means the positive square root. Illustrated definition of Square Root: A square root of a number is a ...The symbol √n is used for the principal square root of n. Thw pricipal square root of 8, denoted √8 is the number whose sguare is 8. There is no easy method for finding this number. We use successive approximation (or other iterative techniques) to get increasingly accurate approximations. √8 = √4 ⋅ 2 = √4 ⋅ √2 = 2√2.The square root of 8 is expressed as √8 in the radical form and as (8) ½ or (8) 0.5 in the exponent form. The square root of 8 rounded up to 8 decimal places is 2.82842712. It is the positive solution of the equation x 2 = 8. …To simplify a square root: make the number inside the square root as small as possible (but still a whole number): Example: √12 is simpler as 2√3. Get your calculator and check if you want: they are both the same value! Here is the rule: when a and b are not negative.Oct 16, 2021 · 8 is not a perfect square. 81/2 is the exponential form of square root of 8. √8 is the radical form of square root of 8. The square root of 8 is 2.828 corrected up to 3 decimal places. Square of 8: 8×8 = 64. √8 is a quadratic surd. The simplified form of √8 is 2√2. Let us now calculate the square root of 8. Step 4: The product is the square root of the number. Therefore, $\sqrt{1764} = 42$. Note: If the number does not make a pair of similar factors we place them inside the square root symbol. For example, to find the square root of 8. Find the prime factors of 8. Step 2: Form pairs of similar factors. Here, we can make two pairs of similar factors8 years ago. sqrt (n) = sqrt (2n+6) To undo a square root, you raise it to the 2nd power (square it). What you do on one side you must do on the other side. So sqrt (n)^2 = n while sqrt (2n+6)^2 = 2n+6. This will leave you with n=2n+6 to solve for n. ( 7 votes)Algebra Calculator - get free step-by-step solutions for your algebra math problems For example, to square -4 enter it into the calculator as (-4) with parentheses. To take the negative of 4 squared enter it as -(4) or -4. When an exponent expression is written with a positive value such a 4² it is easy for most anyone to understand this means 4 × 4 = 16For example, to square -4 enter it into the calculator as (-4) with parentheses. To take the negative of 4 squared enter it as -(4) or -4. When an exponent expression is written with a positive value such a 4² it is easy for most anyone to understand this means 4 × 4 = 16For example, to square -4 enter it into the calculator as (-4) with parentheses. To take the negative of 4 squared enter it as -(4) or -4. When an exponent expression is written with a positive value such a 4² it is easy for most anyone to understand this means 4 × 4 = 16Square of 8.15. By reading so far you know all about squaring the number 8.15 and calculating it as product or by exponentiation. (8.15) 2 is equivalent to 66.4225. If you were searching for what is 8.15 squared in math or if you typed whats 8.15 squared in the search engine you now have all the answers, too.Square root 1 to 100: Square root of a number is a value, which on multiplication by itself, gives the original number. If p is a positive integer, then the square root of p is represented by √p, such that √p = q. There is a list of square roots of 1 to 100 numbers, mentioned in this article. But before heading for it, let us learn some basics here.Find prime factors of 8. Group the factors in 2 in such a way that each number of the group is same. Take one factor from each group. Find the product of the factors obtained in step 3. This product is the required square root. Using the steps above, here is the math showing you how to simplify square root of 8. 8 = 2 2 2. ⇒ 8 = 2 2 2 1 ...Square root calculator and perfect square calculator. Find the square root, or the two roots, including the principal root, of positive and negative real numbers. Calculate the positive principal root and …Square root refers to any number that gives you the original number as the product when multiplied by itself. Expressed with the symbol "√, "square roots belong to the family of exponents. Squares and roots are special exponents. Any square x is simply x raised to the power of ½, or x1/2.3 years ago. Yes, you can take that approach. But, your work is incomplete. When you simplify a square root, you need to ensure you have removed all perfect squares. With 3√8, you still have a perfect square inside the radical. 3√8 = 3√ (4*2) = 3√4 * √2 = 3*2√2 = 6√2. Hope this helps. The root directory of a hard drive is the top most directory in a hard drive. Each hard drive has its own root directory. All other directories or folders on the hard drive lie be...square root of 8. Natural Language; Math Input; Extended Keyboard Examples Upload Random. Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history, geography, engineering, mathematics, linguistics, sports, finance, music…Apr 18, 2020 ... MathIsSimple #Grade8 #SquareRoots #Approximation #Algebra Approximating Square Roots on a Number Line| Number Sense | Grade 8 Like to learn ...Find prime factors of 8. Group the factors in 2 in such a way that each number of the group is same. Take one factor from each group. Find the product of the factors obtained in step 3. This product is the required square root. Using the steps above, here is the math showing you how to simplify square root of 8. 8 = 2 2 2. ⇒ 8 = 2 2 2 1 ... So 4x plus 1-- I'm just taking the square root of both sides. You take the square root of both sides, and, of course, you want to take the positive and the negative square root, because 4x plus 1 could be the positive square root of 8, or it could be the negative square root of 8. So 4x plus 1 is equal to the positive or negative square root of 8.Is this the payment method of the future? No cash, no credit card, just your smartphone and your finger? Find out how Square works at HowStuffWorks. Advertisement Cash is so 20th c...The square root of 8 is expressed as √8 in the radical form and as (8) ½ or (8) 0.5 in the exponent form. The square root of 8 rounded up to 8 decimal places is 2.82842712. It is the positive solution of the equation x 2 = 8. …What Is The Square Root Of 8? The square root of 8 in radical form is written as √8 and the answer of squareroot of 8 is 2.82842712. It can also be expresseed as √8 = 2√2. Square Root Of 8 Simplified. √8 = 22 = 2.8284271247461903. Square Root Of 8 In Exponential Form. √8 = (8)½.Oct 29, 2022 ... ... with Fractions 7. Jewels Math Tools•7.6K views · 8:02. Go to channel · Square root of ANY number instantly - shortcut math. tecmath•8.3M views.Square Root of 3. The square root of 3 is expressed as √3 in the radical form and as (3) ½ or (3) 0.5 in the exponent form. The square root of 3 rounded up to 7 decimal places is 1.7320508. It is the positive solution of the equation x 2 = 3. Square Root of 3: 1.7320508075688772. Square Root of 3 in exponential form: (3) ½ or (3) 0.5.Square root decomposition — split the sequence into blocks of fixed size. Splitting objects (e.g. vertices) into light and heavy. Square root decomposition by the time of queries & …square root of 8. Natural Language; Math Input; Extended Keyboard Examples Upload Random. Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history, geography, engineering, mathematics, linguistics, sports, finance, music…In mathematics, a square root function is defined as a one-to-one function that takes a positive number as an input and returns the square root of the given input number. f(x) …What is the Square Root of 8? Rounding to eight decimal places, the square root of 8 is 2.82842712. The square root of 8 results in a number that when multiplied by itself gives the value 8. Also, the square root of 8 can be written in different ways: Square root of 8 in radical form: \ (\sqrt {8}\) or \ (\sqrt {2}\) For example, to square -4 enter it into the calculator as (-4) with parentheses. To take the negative of 4 squared enter it as -(4) or -4. When an exponent expression is written with a positive value such a 4² it is easy for most anyone to understand this means 4 × 4 = 16Squares and square roots both concepts are opposite in nature to each other. Squares are the numbers, generated after multiplying a value by itself. Whereas square root of a number is value which on getting multiplied by itself gives the original value. Hence, both are vice-versa methods. For example, the square of 2 is 4 and the square root of ...How to find the square root of 8. Step 1: Find the nearest integer that can divide the number. [The nearest integer that can divide 8 is 2] Step 2: Divide the numbers until you reach a satisfactory digit after the decimal Long Division Method. Step 3: The quotient is the square root of the number √8 = 2.828; Solved examples. Example 1: Find the square …Apr 28, 2015 ... How to approximate square roots | Numbers and operations | 8th grade | Khan Academy. 434K views · 8 years ago #YouCanLearnAnything ...more ...To find the square root of 8 using prime factorization, we break down 8 into its prime factors: 2 x 2 x 2. Using two same numbers, we find that 8 has a square root of 2 times itself. 2. Long Division Method. Using the big divide method, we keep making our guess better until it stops changing. Then finally we find out that √8 is around 2.8284. 3.Definition 8.1.16. Given a real number a and a positive integer n, an “ nth root of a” is a number x such that xn = a. For example, 2 is a 6th root of 64 since 26 = 64 and −3 is a fifth root of −243 since (−3)5 = −243. The case of even roots (i.e., when n is even) closely parallels the case of square roots. The square root of 25 is 5, as 5 x 5 = 25. The square root of 49 is 7, as 7 x 7 = 49. The square root can be positive or negative (-3 x -3 equals 9, -5 x -5 = 25, and -7 x -7 = 49). When people say “square root,” they usually refer to the positive square root. The opposite of a square root is a squared (power of 2) calculation.Algebra. Simplify square root of 68. √68 68. Rewrite 68 68 as 22 ⋅17 2 2 ⋅ 17. Tap for more steps... √22 ⋅17 2 2 ⋅ 17. Pull terms out from under the radical. 2√17 2 17. The result can be shown in multiple forms.Square Root of 8 in radical form: √8 or 2 √2 What Is the Square Root of 8? We know that addition has an inverse operation as subtraction and multiplication has an inverse operation as division. Similarly, finding the square root is an inverse operation of squaring a number. To sum up, the square roots of 8 are ±2.8284271247; the positive real value is the principal. Finding the second root of the number 8 is the inverse operation of rising the ²√8 to the power of 2. That is to say, (±2.8284271247) 2 = 8. Further information about the root of a number like ²√8 can be found on our page n-th Root. Algebra. Simplify square root of 180. √180 180. Rewrite 180 180 as 62 ⋅5 6 2 ⋅ 5. Tap for more steps... √62 ⋅5 6 2 ⋅ 5. Pull terms out from under the radical. 6√5 6 5. The result can be shown in multiple forms.Algebra Calculator - get free step-by-step solutions for your algebra math problems Algebra. Solve for x square root of 8-2x=x. √8 − 2x = x 8 - 2 x = x. To remove the radical on the left side of the equation, square both sides of the equation. √8−2x2 = x2 8 - 2 x 2 = x 2. Simplify each side of the equation. Tap for more steps... 8−2x = x2 8 - …3 Squared. =. = 3 × 3 = 9. "Squared" is often written as a little 2 like this: This says "4 Squared equals 16" (the little 2 means the number appears twice in multiplying, so 4×4 =16) Square Root. A square root goes the other direction: 3 squared is 9, so a square root of 9 is 3. It is like asking: The square root of 200 in its simplest radical form is 10√2. If we know the prime factorization of a number, we can write the radical form of the square root of that number. As a result, the prime factorization of 200 is 2 × 2 × 2 × 5 × 5. As a result, the square root of 200 in the simplest radical form should be 10√2.May 23, 2020 ... In this video, we will find the square root of 8 in a very easy way. ----------------------------- We post daily videos on youtube ...What is the square root of -8? Algebra Properties of Real Numbers Square Roots and Irrational Numbers. 3 Answers Jacobi J. Jul 22, 2018 #pm2isqrt2# Explanation: We have the following: #sqrt(-8)# We can rewrite this as. #color(steelblue)(sqrt8)*color(purple)(sqrt(-1))# Recall that ...The square root of 82.8 is the number, which multiplied by itself 2 times, is 82.8. In other words, this number to the power of 2 equals 82.8. Besides the real values of. along with an explanation, on this page you can also find what the elements of …Square root calculator and perfect square calculator. Find the square root, or the two roots, including the principal root, of positive and negative real numbers. Calculate the positive principal root and …Aug 1, 2023 · What Is The Square Root Of 8? The square root of 8 in radical form is written as √8 and the answer of squareroot of 8 is 2.82842712. It can also be expresseed as √8 = 2√2. Square Root Of 8 Simplified. √8 = 22 = 2.8284271247461903. Square Root Of 8 In Exponential Form. √8 = (8)½. Algebra Calculator - get free step-by-step solutions for your algebra math problemsThe square root of 82.8 is the number, which multiplied by itself 2 times, is 82.8. In other words, this number to the power of 2 equals 82.8. Besides the real values of. along with an explanation, on this page you can also find what the elements of …Conclusion. To sum up, 8 squared = 8 × 8 = (8) 2 = 64. The exponentiation form is mostly used to denote eight squared. If this article about the square of 8 has been of help to you then please share it by means of the social buttons. And should you want to leave a comment related to 8 squared use the form below.One method of estimating square roots is called the Babylonian method. Start with a guess of the square root and divide the original number by your guess. Then, take an average of your guess and the result of the division. Continue until you obtain the required precision. For example, to find the square root of 2: Start with a guess of 1.5.Squares and square roots both concepts are opposite in nature to each other. Squares are the numbers, generated after multiplying a value by itself. Whereas square root of a number is value which on getting multiplied by itself gives the original value. Hence, both are vice-versa methods. For example, the square of 2 is 4 and the square root of ... The radical representation of the square root of 64 is √64. Also, we know that the square of 8 is 64, i.e. 8 2 = 8 × 8 = 64. Thus, the square root of 64 can also be expressed as √64 = √ (8) 2 = √ (8 × 8) = 8. However, “every positive real number such as 64 owns two square roots; one is positive, and the other is negative.Take the square root of both sides, remembering to take both the positive and negative square root of the number on the right √ (x + 5/2)² = ± √ 7 x + 5/2 = ± √ 7 Isolate the x by subtracting away the constant that is still with it x = - 5/2 …Summary. To sum up, the fourth roots of 8 are ±1.6817928305. Finding the 4th root of the number 8 is the inverse operation of rising the ⁴√8 to the power of 4. That is to say, (±1.6817928305) 4 8 = 8. Further information related to …Yes, square roots can create 2 answers -- the positive (principal) root and the negative root. When you are working with square roots in an expression, you need to know which value you are expected to use. The default is the principal root. We only use the negative root when there is a minus in front of the radical. For example: 8 + sqrt (9) = 11. Lightspeed and Square are two of the top POS systems on the market. See how they compare in our Lightspeed vs Square review. Retail | Versus REVIEWED BY: Meaghan Brophy Meaghan has...Oakland, Calif.-based startup Back to the Roots is run by 2 successful entrepreneurs with advice to help you start and grow a product-based company. By clicking "TRY IT", I agree t...Calculator Use. Use this calculator to find the fourth root of a number. It accepts inputs of real numbers for the radicand. This online calculator is set up specifically to calculate 4th root. To calculate any root of a number use our Nth Root Calculator. For complex or imaginary solutions use Simplify Radical Expressions Calculator .
The value of the cube root of 8 is 2. It is the real solution of the equation x 3 = 8. The cube root of 8 is expressed as ∛8 in radical form and as (8) ⅓ or (8) 0.33 in the exponent form. As the cube root of 8 is a whole number, 8 is a perfect cube. Cube root of 8: 2. Cube root of 8 in exponential form: (8) ⅓. Cube root of 8 in radical .... Gof downloader
2. Take the square roots of your perfect square factors. The product property of square roots states that for any given numbers a and b, Sqrt (a × b) = Sqrt (a) × Sqrt (b). Because of this property, we can now take the square roots of our perfect square factors and multiply them together to get our answer.6 2 + 8 2 = 10 2. 36 + 64 = 100. Square Roots. The square root is the inverse operation of squaring. To find the number with the given square is called the Square Root. 2 2 = 4, so the square root of 4 is 2. 10 2 = 100, therefore square root of 100 is 10. There are two square roots of any number. One is positive and other is negative.Algebra Calculator - get free step-by-step solutions for your algebra math problems The RMS value is a square root of the average value of the squared function. For example, let’s take a sinusoidal waveform of voltage as shown below figure. Follow these steps to calculate the RMS voltage by graphical method. Step-1: Divide waveform into equal parts. Here, we consider the half cycle of the waveform. You can …Oct 29, 2022 ... ... with Fractions 7. Jewels Math Tools•7.6K views · 8:02. Go to channel · Square root of ANY number instantly - shortcut math. tecmath•8.3M views.The square roots of 36 are 6 and -6. The square root of a number is a number that, when multiplied by itself, results in the original number. A number that is the square of a whole...Yes, you can take that approach. But, your work is incomplete. When you simplify a square root, you need to ensure you have removed all perfect squares. With 3√8, you still have a perfect square inside the radical. 3√8 = 3√(4*2) = 3√4 * √2 = 3*2√2 = 6√2 Hope this helps.The value of the cube root of 8 is 2. It is the real solution of the equation x 3 = 8. The cube root of 8 is expressed as ∛8 in radical form and as (8) ⅓ or (8) 0.33 in the exponent form. As the cube root of 8 is a whole number, 8 is a perfect cube. Cube root of 8: 2. Cube root of 8 in exponential form: (8) ⅓. Cube root of 8 in radical ...Square of 8.15. By reading so far you know all about squaring the number 8.15 and calculating it as product or by exponentiation. (8.15) 2 is equivalent to 66.4225. If you were searching for what is 8.15 squared in math or if you typed whats 8.15 squared in the search engine you now have all the answers, too.The square root of any natural number, when multiplied by itself, gives the original number n. The square root is the inverse function of finding square. √p q = √p √q. There are two important square roots of a perfect square number n + viz. √n & − √n. Ex: 62 = 36 = √36 = ±6 i.e. +6 & -6.Note that all these square roots end with the digits $0, 1, 4, 5$ or $9.$ Property 5. If the last digit of a number is either $2, 3, 7$ or $8,$ then the square root of that number cannot be a whole number. Thus, the square root of any even number with last digit 2 or 8 is an integer.Jun 13, 2021 ... Square Root 21 Square Root 6 ; Square Root of 6 Square Root 3 ; How to find the Square... Square Root 8 ; Square Root of 8 Square Root 20 ...3. Multiply the bottom ones place by the top tens number. Take the same number on the bottom and multiply it by the top tens number. Remember to add the number you carried and write the result below the line. For example, with 24 x 24, multiply 4 by 2 and add the 1 you carried. The result below the line should be 96.The radical representation of the square root of 64 is √64. Also, we know that the square of 8 is 64, i.e. 8 2 = 8 × 8 = 64. Thus, the square root of 64 can also be expressed as √64 = √ (8) 2 = √ (8 × 8) = 8. However, “every positive real number such as 64 owns two square roots; one is positive, and the other is negative.What is the square root of -8? Algebra Properties of Real Numbers Square Roots and Irrational Numbers. 3 Answers Jacobi J. Jul 22, 2018 #pm2isqrt2# Explanation: We have the following: #sqrt(-8)# We can rewrite this as. #color(steelblue)(sqrt8)*color(purple)(sqrt(-1))# Recall that ...The procedure to use the square root calculator is as follows: Step 1: Enter the number in the respective input field. Step 2: Now click the button “Find Square Root” to get the output. Step 3: The square root of the given number will be displayed in the output field. 8 is not a perfect square. 81/2 is the exponential form of square root of 8. √8 is the radical form of square root of 8. The square root of 8 is 2.828 corrected up to 3 decimal places. Square of 8: 8×8 = 64. √8 is a quadratic surd. The simplified form of √8 is 2√2. Let us now calculate the square root of 8.To calculate the square root of a negative number, find the square root of the same positive number and multiply by "i". ( where i represents an imaginary number and i = square root of -1) Example: square root of -5. = (square root of 5) x (square root of -1) = (square root of 5) x (i) = 2.236068 x i. = 2.236068i..