Question

f(x) = 3x2 − 4, what is f(-2)?

Answer 1

= (2*-4^2) - 4
= (2*16) - 4
= 32 - 4
= 28

Answer 2

Oops, it was 3 * x2, so answer is 48 - 4 = 44

Answer 3

f(-2)=3*(-2^2)-4
=3*4-4
=12-4 =8

Answer 4

You really shouldn't try to get medals like that.