Question

Calcule o valor da expressão:
[100-(5²-3²)]:2

Answer 1

$\large\boxed{\begin{array}{l}\sf[100-(5^2-3^2)]:2\\\sf[100-(25-9)]:2\\\sf[100-16]:2\\\sf[84]:2\\\sf84:2\\\sf42\end{array}}$