Algebra Examples

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

Step 1

Rewrite $81 x^{4}$ as ${(3 x)}^{4}$ .

$\sqrt[4]{{(3 x)}^{4}}$

Step 2

Pull terms out from under the radical.

$| 3 x |$

Step 3

Remove non-negative terms from the absolute value.

$3 | x |$