Question

(-7+9)elevado a 3 quanto eh? e (-1) elevado a 3

Answer 1

$(-7+9)^3\to 2^3\to 2*2*2\to 8\\\\\\ (-1)^3\to (-1)* (-1)* (-1)\to -1$

Answer 2

(-7+9)^3
(2)^3 = 2*2*2 = 8

(-1)^3
-1*-1*-1 = -1