I need some help on finding the general solution.(adsbygoogle = window.adsbygoogle || []).push({});

I can find the complimentary solution, I'm having trouble finding the particular solution. Can anyone give me any tips.

y"+9y=t^2e^(3t)+6

y"-2y'-3y=-3te^-t

y"+2y'=3+4sin(2t)

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# Homework Help: Second order linear equations

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