Question

Faça os cálculos:
a) -7^2 + (-7)^2
b) -2^3 - 30 -1
c) 3^2 + 3-^2
d) (-2/3)^3 + 1

Answer 1

Resposta:

a) -7²+(-7)²=-49+49=0

b) -2³-30-1= -8-31=-39

c) 3²+3^-2=>9+1/3²=>9+1/9=82/9

d) (-2/3)³+1=-8/27+1=19/27