Simplify square root of 320x^8y^19

$\sqrt{320 x^{8} y^{19}}$

Step 1

Rewrite $320 x^{8} y^{19}$ as ${(8 x^{4} y^{9})}^{2} \cdot (5 y)$ .

Factor $64$ out of $320$ .

$\sqrt{64 (5) x^{8} y^{19}}$

Rewrite $64$ as $8^{2}$ .

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

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

$\sqrt{8^{2} \cdot 5 {(x^{4})}^{2} y^{19}}$

Factor out $y^{18}$ .

$\sqrt{8^{2} \cdot 5 {(x^{4})}^{2} (y^{18} y)}$

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

$\sqrt{8^{2} \cdot 5 {(x^{4})}^{2} ({(y^{9})}^{2} y)}$

Move $5$ .

$\sqrt{8^{2} {(x^{4})}^{2} {(y^{9})}^{2} \cdot 5 y}$

Rewrite $8^{2} {(x^{4})}^{2} {(y^{9})}^{2}$ as ${(8 x^{4} y^{9})}^{2}$ .

$\sqrt{{(8 x^{4} y^{9})}^{2} \cdot 5 y}$

Add parentheses.

$\sqrt{{(8 x^{4} y^{9})}^{2} \cdot (5 y)}$

Step 2

Pull terms out from under the radical.

$8 x^{4} y^{9} \sqrt{5 y}$