Evaluate fourth root of (-7)^4

$\sqrt[4]{{(- 7)}^{4}}$

Step 1

Raise $- 7$ to the power of $4$ .

$\sqrt[4]{2401}$

Step 2

Rewrite $2401$ as $7^{4}$ .

$\sqrt[4]{7^{4}}$

Step 3

Pull terms out from under the radical, assuming positive real numbers.

$7$