What is h'(3) if h(x) = f(g(x) + f(x))

Question

Answer 1

h'(x) = f'(f(x) + g(x))(f'(x) + g'(x)); h'(3) = f'(f(3) + g(3))(f'(3) + g'(3)) = f'(3 - 3)(2 + 3) = f'(0)·5 = 0·5 = 0