Simplify - square root of 180x^8y^19

$- \sqrt{180 x^{8} y^{19}}$

Step 1

Rewrite $180 x^{8} y^{19}$ as ${(6 x^{4} y^{9})}^{2} \cdot (5 y)$ .

Factor $36$ out of $180$ .

$- \sqrt{36 (5) x^{8} y^{19}}$

Rewrite $36$ as $6^{2}$ .

$- \sqrt{6^{2} \cdot 5 x^{8} y^{19}}$

Rewrite $x^{8}$ as ${(x^{4})}^{2}$ .

$- \sqrt{6^{2} \cdot 5 {(x^{4})}^{2} y^{19}}$

Factor out $y^{18}$ .

$- \sqrt{6^{2} \cdot 5 {(x^{4})}^{2} (y^{18} y)}$

Rewrite $y^{18}$ as ${(y^{9})}^{2}$ .

$- \sqrt{6^{2} \cdot 5 {(x^{4})}^{2} ({(y^{9})}^{2} y)}$

Move $5$ .

$- \sqrt{6^{2} {(x^{4})}^{2} {(y^{9})}^{2} \cdot 5 y}$

Rewrite $6^{2} {(x^{4})}^{2} {(y^{9})}^{2}$ as ${(6 x^{4} y^{9})}^{2}$ .

$- \sqrt{{(6 x^{4} y^{9})}^{2} \cdot 5 y}$

Add parentheses.

$- \sqrt{{(6 x^{4} y^{9})}^{2} \cdot (5 y)}$

Step 2

Pull terms out from under the radical.

$- (6 x^{4} y^{9} \sqrt{5 y})$

Step 3

Multiply $6$ by $- 1$ .

$- 6 x^{4} y^{9} \sqrt{5 y}$