Question

Does anyone know how to do this?? steps are helpful but not necessary

Answer 1

C.
`(2(x+16))/(x+4)`

Explanation:

We want fg of x, so first we have to multiply f(x) times g(x).

`(x+16)/(x) * (2x)/(x+4)`

`((x+16)2x)/(x(x+4))`

`(2x^(2)+32x)/(x^(2)+4x)`

We can cancel out an x from every term.

`(2x+32)/(x+4)`

Let's rewind a little to get this into one of the answer choices.

`(2(x+16))/(x+4)` is our answer.