Solve the following recurrence relations a) Xn = 7xn-1-10xn-2, x0=2, x1=3 b) Xn = 2xn-1+Xn-2-3xn-3, X0=2, x1=1, x2=4 c) Xn = Xn-1+2n, X0=5 d) Suppose that an and bn are both solutions to a recurrence relation of the form Xn-axn-1+xn-2. Prove that for any constants c and d, can+dbn is also a solution to the same recurrence relation.