What is the square root of 125?

Feb 4, 2017

$\sqrt{125} = 5 \sqrt{5}$

Explanation:

$\sqrt{125}$

split up into product pair such that one of the numbers is a perfect square

$\sqrt{125} = \sqrt{25 \times 5}$

$\sqrt{125} = \sqrt{25} \times \sqrt{5}$

$\sqrt{125} = 5 \times \sqrt{5} = 5 \sqrt{5}$