(a) Find the derivative of f (x) = (x2 + 5 ) (4x - 5) by first expanding the polynomials. Enter the fully simplified expression for f (x) after expanding the polynomials. f (z) = Enter the derivative of f (x). f (x) = (b) Find the derivative of f (x) = (x2 + 5) (4x - 5) by using the product rule. Let g (x) = x2 + 5 and h (x) = 4x - 5. g (x) = h (x) = f' (a) = (c) Are the expressions for the derivative in (a) and (b) the same? Click for List