Evaluate fourth root of (-4)^4

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

Step 1

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

$\sqrt[4]{256}$

Step 2

Rewrite $256$ as $4^{4}$ .

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

Step 3

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

$4$