Find the general solution of the ODE:

y'' - 7y' + 6y = 2*exp(3t) + t*e^t

i did this question and got the general solution of the homogenous equation and particular solution of 2*exp(3t) correct. Howver when solving the particular solution of t*e^t, everything sorta cancelled out on the last step...someone help pls thx alot!