Question

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!

Answer 1

and continue...

g[h(x)]=sqrt(2x^2-5-7)
= sqrt(2x^2-12)

Answer 2

Thank you thank you thank you!!!