Marc L. answered 11/16/20
Tutor
New to Wyzant
Helping others understand things one step at a time
you are going to need to use the chain rule to solve this equation:
F'(x)=f'(f(x)) * f'(x)
now that we have our derivative, we just have to solve
F'(3)=f'(f(3)) * f'(3) = f'(2) * 7 = 5*7=35