Question

pls answer this question it is very important pls pls pls ​

Answer 1

Step-by-step explanation:

7.

$= 3 \sqrt{2} + 2 \sqrt{5} + 2\sqrt{2} - \sqrt{5}$

$= 5 \sqrt{2} + \sqrt{5}$

8.

$= \frac{8 \sqrt{15} }{2 \sqrt{3} }$

$= \frac{4 \sqrt{15} }{ \sqrt{3} }$

hope it helps..