Consider the differential equation (1-x)y"-xy' + py = 0, where p is a constant. (5a) Find two linearly independent series solutions valid for x < 1 (5b) Show that if p = n where n is a non-negative integer, then there is a polynomial solution of degree n. (5c) Determine the polynomial solutions from (5b) for n = 0, 1, 2, 3, 4.