Question

How do you differentiate `f(x)=4(x^2 + x - 1)^10` using the chain rule?

Answer 1

`f'(x)=40(x^2+x-1)^9(2x+1)`

Explanation:

We used that `(x^n)'=nx^{n-1}` and that `(x^2+x-1)'=2x+1`