What is the Square root of 420?

Sep 11, 2015

It's important to first realized that 420 is not a perfect square.

Explanation:

Therefore, we can only simplify it to obtain the answer.
Since 4 is a multiple of 420, we can take the square root of 4 and 105, with the equation: -

sqrt((4)*(105)

The answer will be $2 \sqrt{105}$