# How do you simplify 5 sqrt5 * 3 sqrt3?

Apr 7, 2018

#### Answer:

$15 \sqrt{15}$

#### Explanation:

Multiply the numbers outside of the radicals and multiply the numbers inside the radicals

$5 \sqrt{5} \cdot 3 \sqrt{3}$

$5 \cdot 3 \sqrt{5} \cdot 3$

$15 \sqrt{15}$