Question

o resultado da operação (-4)² : 4/2 + 2/5 será de:

a) 8
b) 42/5
c) 5/42
d) 16/20

conter calculo!
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Answer 1

$\large\sf{}\left( - 4\right)^{2} + \dfrac{4}{2} + \dfrac{2}{5} \\\\\large\sf{} {4}^{2} \div \dfrac{4}{2} + \dfrac{2}{5} \\\\ \large\sf{} {4}^{2} \times \dfrac{2}{4} + \dfrac{2}{5} \\\\ \large\sf{} {4}^{\cancel{2}} \times \dfrac{2}{\cancel{4}} + \dfrac{2}{5} \\\\ \large\sf{}4 \times 2 + \dfrac{2}{5} \\\\ \large\sf{}8 + \dfrac{2}{5} \\\\ \large\sf{}\bm{\large\boxed{\boxed{  { \large \sf \dfrac{42}{5} }}}}$

$\bm{\large\boxed{\boxed{  { \large \sf Alternativa \: B}}}}$