(5) Let’s consider the equation x2y?? ? 3xy? ? 5y = f (x) on the interval (0, ?) for various “forcing functions” f (x). (a) First solve the complementary equation, that is when f (x) = 0. (b) Now suppose f (x) = x3. Find a particular solution of the form yP = Ax3. Then construct the general solution.