I want to use A(D)= (D+2)^2 to annihilate F(X)=5xe^(-2x).

However, I also need to compute A(D) operating on y''+4y'+4y in order to find Yp.

Thus, my question is this.

How do I compute A(D) operating on y''+4y'+4y?

I know it's simple but I'm stuck.