Question

A) √2+3√2+5√2

B)5√3+3√3-9√3

C) -11√7+5√7+2√7

Answer 1

Explicação passo-a-passo:

$a) \sqrt{2} + 3 \sqrt{2} + 5 \sqrt{2} = 9 \sqrt{2} . \\ b)5 \sqrt{3} + 3 \sqrt{3} - 9 \sqrt{3} = - \sqrt{3} . \\ c) - 11 \sqrt{7} + 5 \sqrt{7} + 2 \sqrt{7} = -4 \sqrt{7} .$