Question

h(x)= f(g(x^3)) what does h ' (x)=?

Answer 1

apply chain rule

h'(x) = f'(g(x^3))*g'(x^3) *3x^2

Answer 2

im sorry i really dont understand how to proceed with this.

Answer 3

thats it, its done :)

chain rule is you multiply the outside derivative by the inside derivative, in this case there were 2 nested "inside functions"