Question

How do you find `(gof)(x)` given `f(x)=6x^2` and `g(x)=14x+4`?

Answer 1

`gof(x)=84x^2+4`.

Explanation:

Let `y=f(x)=6x^2`. Then, `gof(x)=g(f(x))=g(y)=14y+4`

`=14(6x^2)+4=84x^2+4`