1. The problem statement, all variables and given/known data 3y'' -y' + (x+1)y = 1 y(0) = y'(0) = 0 2. Relevant equations Not sure, that's the issue 3. The attempt at a solution I can't quite get this one using the methods I'm familiar with, and I can't guess a particular solution to neither the equation nor the homogenous version thereof. Do I have to use the power series method?