Given:

f(x)=2+x
g(x)=sqrt(x-7)
h(x)=2x^2-5

Determine: g(h(x))

This is what I've got so far:
f(x)=2+x
g(x)=sqrt(x-7)
h(x)=2x^2-5
g[h(x)]=sqrt(h(x)-7)

And I don't know if that's right or not >_<

Please help!

2 answers

and continue...

g[h(x)]=sqrt(2x^2-5-7)
= sqrt(2x^2-12)
Thank you thank you thank you!!!