1. ## Simplifying SquareRoots

A review question I'm not sure how to answer, the question says to add or subtract whenever possible and to simplify the answer.

$
3\sqrt{50}+4\sqrt{72}
$

2. You need to find square numbers inside the square root i.e 1,4,9,16,25,36,... to help simplify.

$
\sqrt{72} = \sqrt{2\times 36} = \sqrt{2}\times\sqrt{36} = \sqrt{2}\times 6 = 6\sqrt{2}
$

Now do the same for the first term and finish.

3. $\sqrt{72} = 6\sqrt{2}$
and
$\sqrt{50} = 5\sqrt{2}$

but what happens with the 3 and 4, I multiply them with the 6 and 5?

4. oh wait, i got the answer

thank you so much