Consider the function. f(x) = xR(x) + @(x) Identify the derivative f' (x). Of'(x) = XR'(x) + R(x) + @'(x) Of' ( x) = R'(x) + Q'(x) Of' ( x) = XR'(x) + 0' (x) Of'( x) = XR'(x) + R(x) + @(x) If R(x) = 4x2 + 6 and Q(x) = 4, find an expression for f'(x). (Express numbers in exact form. Use symbolic notation and fractions where needed.) f' (x) = 16x#+ 12x2 - 4