So to find the 1st derivative I use the Chain Rule:

2nd:

Multiplication rule [f'(x)*g(x) + f(x)*g'(x)] and Chain Rule:

3rd:

Multiplication rule [f'(x)*g(x) + f(x)*g'(x)] and Chain Rule:

I think I got this one wrong but this is how I worked it out...have I done any step incorrectly here?