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 252?

A: The square root of 252 is equal to 15.87. Written in simplified radical form, the square root of 252 is equal to 6 times the square root of 7. Full Answer >Filed Under: -
Q:
## What Is the Square Root of 48?

A: The square root of 48 is 6.93. The square root can be expressed by the formula x times x equals y, where x is the square root of y. Plugging in 48, the for... Full Answer >Filed Under: -
Q:
## What Is the Square Root of 61?

A: The square root of 61 is 7.81. A squared number means that number is multiplied by itself. The square root is the opposite. It indicates the number, when m... Full Answer >Filed Under: -
Q:
## What Is the Square Root of 9?

A: The square root of the number 9 is 3. That is worked out by deducing that 3 multiplied by 3, or 3 squared, is 9, so the square root is 3. Full Answer >Filed Under: