Answer:

Explanation:
The last one is also the answer
Using the rational exponet rule,
![\sqrt[n]{ {x}^(m) } = x {}^{ (m)/(n) }](https://img.qammunity.org/2022/formulas/mathematics/college/46qeq7oag955gu685sqx2l8pwlk1rqtef1.png)
Using this number,

40 is the base so it will stay same. Remember this is a square root sign so our nth root is 2 so our denominator if the rational exponet is 2.

so our numerator is 1 so
