Question

Using the Chain Rule , find dy/dx if y=u^4-3u^2+7 and u=x^2+3

Answer 1

The chain rule is just the derivative of the outside times the derivative of the inside, like this:

d/dx (3x^2-7x)^3 = 3(3x^2-7x)^2*(6x-7)

Answer 2

Thanks !