Question

If f (x)=4x and g (x)=x^2-2 what is g F (x)

Answer 1

does this mean
\[g\circ f(x)\]?

Answer 2

yes thats what it means

Answer 3

if so then
\[g\circ f(x)=g(f(x))=g(4x)=(4x)^2-2=16x^2-2\]

Answer 4

yes
g(x) = (4x)^2 - 2
= 16x^2 - 2