Question

if f ( x ) = 3x^2 + x - 2, then f ( -2 ) =

Answer 1

Answer:

First we substitute -2 into .x

3(-2)^2 + (-2) - 2

12 - 4 = 8

f(-2) = 8 :D

Step-by-step explanation:

Answer 2

Given ,

$f(x) = 3x^{2} + x -2$

Now ,

$f(-2) = 3(-2)^{2} +(-2)-2$

=> f(-2) = 8-4 = 4