Hey guys, I'm having a little trouble with this problem. I'm not entirely sure how the particular solution should look so I can't really solve the problem

Here it is:

Find a particular solution y_p of the differential equation 5y''+8y'+5y=sin^2(x) using the method of undetermined coefficientshttps://instruct.math.lsa.umich.edu/...144/char3A.png

Any help would be appreciated