Algebra Examples

$\sqrt[4]{81 x^{2}}$

Step 1

Rewrite $81$ as $3^{4}$ .

$\sqrt[4]{3^{4} x^{2}}$

Step 2

Pull terms out from under the radical.

$3 \sqrt[4]{x^{2}}$

Step 3

Rewrite $\sqrt[4]{x^{2}}$ as $\sqrt{\sqrt{x^{2}}}$ .

$3 \sqrt{\sqrt{x^{2}}}$

Step 4

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

$3 \sqrt{x}$