Precalculus Examples

$\sqrt{25 {(x + 5)}^{18}}$

Step 1

Rewrite $25 {(x + 5)}^{18}$ as ${(5 {(x + 5)}^{9})}^{2}$ .

$\sqrt{{(5 {(x + 5)}^{9})}^{2}}$

Step 2

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

$5 {(x + 5)}^{9}$