Find the two values of k for which y(x) = ekx is a solution of the differential equation y'' - 15y' + 56y = 0. smaller value = larger value = Question 4 Solve the initial value problem. y’’ = x¹, y(1) y(1) = 2, y'(1) : = y = > - 2 Question 3 < Solve the initial value problem. y' = xe*, y(0) = 1 y =