Hi guys I need help with the following question. Im working from old exam papers and found this question. Where do I start?

Hi guys

I need help with the following question. Im working from old exam papers and found this question. Where do I start?

I need to solve this second order difference equation:

2Yn+2 - 3Yn+1 + Yn = 5 x 3n

with n => 0, subject to Y0 = 0 and Y1 = 1