Question

Se f(x) = 2x/3 -1 então f(0) + f(-1) + f(2) é?

Answer 1

f(0) = 2 . (0)³ - 1
f(0) = -1

f(-1) = 2 . (-1)³ - 1
f(-1) = -3

f(2) = 2 . (2)³ - 1
f(2) = 15

f(0) + f(-1) + f(2) = (-1) + (-3) + 15 = 11