Differentiate

__(9x -3x^2)^3 cos(4x^3 – 3x)__

e^(7-12x) ln(-x^2 + 3)

With respect to x

I don't want the solution, what i'm after is some help in how to tackle this differentiation question.

This is what i plan to do:

- Find dy/dx for (9x-3x^2)^3 [make this part A]
- find dy/dx for cos(4x^3 - 3x) [make this part B]
- find dy/dx for e^(7 - 12x) [make this part C]
- find dy/dx for ln(-x^2 + 3) [make this part D]
- product rule A and B [make this part E]
- product rule C and D [make this part F]
- quotient rule E and F

Does this look right?