Question

Calcule o valor de;
a) 3²-2²+2³-4²=
b)-2.[(14-6).2-4]=

Answer 1

$a) \\ 3^2-2^2+2^3-4^2 \\ \\ 9 - 4 + 8 - 16 => 5 - 8 => - 3$

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$b) \\ -2.[(14-6).2-4] \\ \\ -2[(8)*2 - 4] \\ \\ -2[16-4] \\ \\ - 2 *[12] => -24$