Q:
# What is the square root of 81?

**The square root of 81 is 9. ** However, if a student needs to solve the equation Â x^{2} = 81, then possible solutions can be either +9 or -9.

Because 81 is a perfect square, it is easy to find its square root. However, finding the square root of a number that is not a perfect square is more difficult. For example, the square root of 72 is 6 x √2. To find this answer, factor 72 into 2 x 36, all placed under the √ symbol, then factor out again as 2 x 6 x 6 (still under the √ symbol). As 36 is a perfect square, the 6s can be moved outside the √, resulting in the answer of 6√2.

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Q:
## What is the square root of 325?

A: The square root of 325 is 18.0277563773. This answer is derived by multiplying 18.0277563773 by 18.0277563773 which is equal to 325. Full Answer >Filed Under: -
Q:
## What is the square root of 63?

A: The square root of 63 is 7.93. The square root of a number, expressed as the variable y, is another number, expressed by the variable x, that when multipli... Full Answer >Filed Under: -
Q:
## What is the square root of 160?

A: The principal square root of 160 is 12.65 to two decimal places. The other square root of 160 is minus 12.65 to two decimal places. All real numbers have t... Full Answer >Filed Under: -
Q:
## What is the square root of 8?

A: According to Math Warehouse, the square root of eight is 2.82. The square root of eight function can be simplified by factoring out the square of the whole... Full Answer >Filed Under: