Question

yoooo hlp please. yourr the best​

Answer 1

Ответ:

$4\sqrt{5}$ и $16\sqrt{2}$

Пошаговое объяснение:

1. $\sqrt{45}+3\sqrt{20}-5\sqrt{5}=\sqrt{9*5}+3\sqrt{4*5}-5\sqrt{5}=3\sqrt{5}+6\sqrt{5}-5\sqrt{5}=4\sqrt{5}$

2. $\sqrt{8}+\sqrt{18}+\frac{1}{4}\sqrt{32}+\sqrt{200}=\sqrt{2*4}+\sqrt{2*9}+\frac{1}{4}\sqrt{2*16}+\sqrt{2*100}=2\sqrt{2}+3\sqrt{2}+4*\frac{1}{4}\sqrt{2}+10\sqrt{2}=16\sqrt{2}$