Question

me ajudeem prfv é urgente ​

Answer 1

A) $\sqrt{5} +\sqrt{20} +2\sqrt{45}$

$\sqrt{5} +2\sqrt{5} +2.3\sqrt{5}$

$\sqrt{5} +2\sqrt{5} +6\sqrt{5}$

$9\sqrt{5}$

B) $3\sqrt3} +\sqrt{12} +\sqrt{75}$

$3\sqrt3} +2\sqrt{3} +5\sqrt{3}$

$10\sqrt{3}$

C) $4\sqrt{32}+ 2\sqrt{8}+ \sqrt{50}$

$4.4+ 2.2+5 \sqrt{2}$

8 + 4 + $5\sqrt{2}$

12 + $5\sqrt{2}$

D) $\sqrt{280}+ \sqrt{7} +\sqrt{112}$

$2\sqrt{70}+ \sqrt{7} +4\sqrt{7}$

$2\sqrt{70}+ 5\sqrt{7}$