Question

Efetue os cálculos .......

Answer 1

Resposta:

A)

$5 \sqrt{7} + 3 \sqrt{7} = 8 \sqrt{7}$

B)

$4 \sqrt{5} - 2 \sqrt{5} = 2 \sqrt{5}$

D)

$\sqrt{5} - \sqrt{5} - \sqrt{5} = - \sqrt{5}$

E)

$5 \sqrt{2} - 3 \sqrt{2} + 2 \sqrt{2} \\ \\ 2 \sqrt{2} + 2 \sqrt{2} = 4 \sqrt{2}$

F)

$8 \sqrt{3} - 2 \sqrt{3} - 8 \sqrt{3} + \sqrt{3 } \\ 6 \sqrt{3} - 7 \sqrt{3} = - 1 \sqrt{3}$