If d/dx(f(2x^3))=9x^2, calculate 𝑓′(𝑥).

Question

I have work up til f'(2x^3)=3/2 but I dont understand how to sub in and find a derivative please help!

Answer 1

Then f( 2x^3) = 3x^3 + C after integrating

The function is (3/2)x + C

f'(x) =3 /2