Question

1)  (3/8+/18)*/2
2)  (/3+/2)-/24 

Answer 1

$1)(3sqrt{8}+sqrt{18})*sqrt{2}=3*sqrt{8}*sqrt{2}+sqrt{18}*sqrt{2}=\ =3*sqrt{2*2*2*2}+sqrt{2*3*3*2}=3*2*2+2*3=12+6=18.$
$2)(sqrt{3}+sqrt{2})*sqrt{24}=sqrt{3*24}*sqrt{2*24}=\ =sqrt{3*2*2*2*3}+sqrt{2*2*2*2*3}=2*3*sqrt{2}+2*2*sqrt{3}=\ =6sqrt{2}+4sqrt{3}.$