Question

If f(x)=3x^2-1 and g(x)=5x-1, then find g(of)f

Answer 1

Wherever there is an x in g(x), substitute the formula for f(x).

Answer 2

so it becomes g(of)f=5(3x^2-1)-1?

Answer 3

Or:

g(of)f=\[15x^2-6\]

Answer 4

yessir..

Answer 5

Yup thats right

Answer 6

Great, tyvm :D

Answer 7

The one on the outside is always the function you out the other stuff into. It wouldn't be any different if you had g(3) or h(4) or any of that, you just put the 4 in right?

It's the same for those equations.