Question

Sabendo que A = (-3) ² e B = - 2 ³, calcule:

a) A + B

b) A - B

c) B - A

d) A . B

Answer 1

Resposta:

$a)( - 3) {}^{2} + ( - 2) {}^{3} \\ 9 + ( - 16) = - 7 \\ \\ b)( - 3) ^{2} - ( - 2) {}^{3} \\ 9 - ( - 16) = 25 \\ \\ c)( - 2) {}^{3} - ( - 3) { }^{2} \\ - 16 - ( - 9) = 7 \\ \\ d)( - 3) { }^{2} x( - 2) {}^{3} \\ 9x( - 16) = - 144$