I am a bit confused onvariation of parameters for solving differential equations. I understand the methods of coefficients but variation of parameters is a bit confusing. I would i use it to solve this:

y'' - 5y' = -2x + 2

Like how would i findindependentsolutions u1(x), u2(x) which would help me find derivatives v1¢(x) and v2¢(x) which then i get a general solution. I am confused on the steps and how to solve.

Thanks

Phil