1. The problem statement, all variables and given/known data y = c1e3x+c2xe3x+c3e2xsin(x)+c4e2xcos(x) 2. Relevant equations Differential Equations. 3. The attempt at a solution I have the roots of k=3, k=3, k=2+i, k=2-i. Now I am just stuck on how to put the roots together to get the original equation. I am just stuck on the complex number part.