Question

If f(x) = 3х2 + 5x, find f(-2).

-22
-9
2. 22

Answer 1

2

Explanation:

f(x) = 3х^2 + 5x

Let x = -2

f(-2) = 3(-2)^2 + 5(-2)

= 3*4 -10

= 12-10

=2