# What's square root 9 times 3 square root of 2?

Sep 11, 2015

The answer is $9 \sqrt{2}$.

#### Explanation:

Write the question using mathematical symbols.

$\sqrt{9} \times 3 \sqrt{2}$

Since $9 = 3 \times 3 ,$ $\sqrt{9} = 3$.

$3 \times 3 \sqrt{2} = 9 \sqrt{2}$