(a) Find the derivative of f(x)=(x^2+7)(2x3) by first expanding the polynomials.

Enter the fully simplified expression for f(x) after expanding the polynomials.

(b) Find the derivative of f(x)=(x^2+7)(2x3) by using the product rule. Let g(x)=x^2+7 and h(x)=2x3

g'(x)=

h'(x)=

f'(x)=