# What is the square root of 21 times the square root of 14?

##### 1 Answer
Oct 12, 2015

$7 \sqrt{6}$

#### Explanation:

$\sqrt{21} \cdot \sqrt{14}$ =$\sqrt{7 \cdot 3 \cdot 7 \cdot 2}$

=$7 \sqrt{6}$