Answer:

Explanation:
The opposite operation of squaring is taking the square root.

We know that the denominator of a fractional power is the index of the corresponding root:
![\displaystyle x^(1)/(n)=\sqrt[n]{x}](https://img.qammunity.org/2021/formulas/mathematics/college/9nyv1tfrldzh6moepf5rzzaozu3zxfd18k.png)
For n=2, we don't usually write the index in the root symbol:

In the case of this problem, ...
