Question

If f(x)= - 4x-4, g(x)= 4x² + 4x + 2, and h(x)= 3x2 – 3, find f(3).

f(3) =
(Simplify your answer.)

Answer 1

`f(3) = -16`

Explanation:

Given

`f(x)= - 4x-4`

`g(x)= 4x^2 + 4x + 2`

`h(x)= 3x^2 - 3`

Required

`f(3)`

We have:

`f(x)= - 4x-4`

Substitute
`x = 3`

`f(3) = -4 * 3 - 4`

`f(3) = -12 - 4`

`f(3) = -16`

Hence:

`f(3) = -16`