Precalculus Examples

$\sqrt[4]{16 a^{20}}$

Step 1

Rewrite $16 a^{20}$ as ${(2 a^{5})}^{4}$ .

$\sqrt[4]{{(2 a^{5})}^{4}}$

Step 2

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

$2 a^{5}$