Question

se f(x) =x3-2 então calcule o valor de f(-1) + f(2)

Answer 1

f(-1)= (-1)3 -2
f(-1)= -1-2
f(-1) = -3

f(2)= (2)3 -2
f(2) = 8 - 2
f(2) = 6

f(-1) + f(2) = -3 + 6
f(-1) + f(2) = +3