f(x) = x3-2x-1, then f(-2) =

Question

Do we sub -2 for x?

Answer 1

-23

Answer 2

The bot is WRONG AGAIN

I will assume you meant :
f(x) = x^3-2x-1
f(-2) = (-2)^3 - 2(-2) - 1
= -8 + 4 - 1
= -5