Method of undetermined coefficients problem

[warfreak131]

I have the problem "Find the particular solution of 4y''+4y'+y=3xe^x.

What would be the assumed function y? Like would it be Ax e^x?

 

[micromass]

It would be more like $$Axe^x+Be^x$$.

 

[warfreak131]

ok, thanks, ill try that