1. The problem statement, all variables and given/known data Find the general solution y'' + 4y' +4y = 5xe^(-2x) 3. The attempt at a solution I got (5/2)x^3*e^(-2x) as a particular solution. But I checked online at wolfram alpha and it says the particular solution is (5/6)x^3*e^(-2x). Using method of undetermined coefficients.