I am stuck on this question
A suitable form of the general solution to y''-2y'+y=e^t+t
My work so far is
(r-1)^2=0 so r=1 so C_1*e^t+C_2*t*e^t=y(t)
plugging in and simplifying i get At^2+2A=1, however i dont know where to go from here
also for t i did
so plugging in i get -2B+Bt+C=t but i dont know where to go from here, please help.