Question

PLEASE HELP!! Given that f(x) = x2 − 4x − 3 and g(x) = the quantity of x plus three, over four , solve for f(g(x)) when x = 9.

Answer 1

\((f(\color{red}{x})=\color{red}{x}^2-4\color{red}{x}-3\\(f(\color{red}{g(x)})=\color{red}{(g(x))}^2-4\color{red}{g(x)}-3\)
Hence, just replace where you see x by g(x) to get f(g(x) first, then plug x =9 in

Answer 2

im still a bit confused, where would I plug in x=9?

Answer 3

Read my guidance: find f(g(x) FIRST

Answer 4

I don't know how to