# What is (5 square root of 5) squared?

Sep 20, 2015

125

#### Explanation:

I'll assume you mean
${\left(5 \cdot \sqrt{5}\right)}^{2}$

Since it is a multiplication inside the parentheses,
removing the parentheses gives you:
${5}^{2} {\left(\sqrt{5}\right)}^{2}$

So, ${5}^{2} = 25$, right?
And ${\left(\sqrt{5}\right)}^{2} = 5$ (it's the square of a square-root, so yeah)
Then you are left with:
$25 \cdot 5 = 125$

That's it! Hope it helped.