Question

If f (x) = 3x²-x, find f (-2).

Answer 1

f(-2) = 14

Explanation:

put -2 where x is

f(x) = 3x²-x

f(-2) = 3(-2)²-(-2)

f(-2) = 3(4)+2

f(-2) = 12+2

f(-2) = 14

Answer 2

i’m certain that the answer is 14