Best Answer

It's best to use a calculator for this.

Without a calculator, several methods exist; for example, just try out different numbers. Since 2 squared is 4 and 3 squared is 9, the square root of 8 must be between those too. Continue trying with some other numbers - for example, 2.5 squared is 6.25, so you have to go a bit higher.

More efficient (i.e., faster) methods exists as well, but they are all based on iterative procedures - that is, repeating a series of operations over and over again, until you get close enough to the desired result.

Q: How do you get the square root of 8?

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The square root of minus 8 is equal to the square root of 8 times the square root of minus 1, or 2.8284i.

Square Root of 50: 7.0710678118654752440084436210485Square Root of 8: 2.82842712474619009760337744841942.8284271247461900976033774484194+7.0710678118654752440084436210485-------------------------------------------------------------9.8994949366116653416118210694674

The square root of 8 is 2 multiplied by the square root of 2

The square root of 64 is 8

4 square root of 7

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The square root of minus 8 is equal to the square root of 8 times the square root of minus 1, or 2.8284i.

5.6568542494923801952067548968388Improved Answer:-It is 8

square root 2 times square root 3 times square root 8

The principle square root of 64 is ±8.8.* * * * *The square roots of 64 are +8 and -8.The PRINCIPAL square root is the positive root, +8.So, the answer to the question that was asked is +8 not ±8.

no! the square root of 8 is not retional but the cube root is retional

no! the square root of 8 is not retional but the cube root is retional

no! the square root of 8 is not retional but the cube root is retional

square root of 64 is 8

Square Root of 50: 7.0710678118654752440084436210485Square Root of 8: 2.82842712474619009760337744841942.8284271247461900976033774484194+7.0710678118654752440084436210485-------------------------------------------------------------9.8994949366116653416118210694674

square root is 8 (8 x 8 = 64)cube root is 4 (4 x 4 x 4 = 64)

0.625

The square root of 8 is 2 multiplied by the square root of 2