Algebra Examples

$\sqrt{81 x^{2}}$

Step 1

Rewrite $81 x^{2}$ as ${(9 x)}^{2}$ .

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

Step 2

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

$9 x$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$