Question

Упростите выражения
√5(√3+√7)=
0,3√32+1/3√18 =

Answer 1

$1)\sqrt{5}(\sqrt{3}+\sqrt{7})=\sqrt{5}*\sqrt{3}+\sqrt{5}*\sqrt{7}=\sqrt{15}+\sqrt{35}\\\\2)0,3\sqrt{32}+\frac{1}{3}\sqrt{18}=0,3\sqrt{16*2}+\frac{1}{3}\sqrt{9*2}} =0,3\sqrt{4^{2}*2}+\frac{1}{3}\sqrt{3^{2}*2}=0,3*4*\sqrt{2}+\frac{1}{3}*3*\sqrt{2}=1,2\sqrt{2}+\sqrt{2}=2,2\sqrt{2}$