1. The problem statement, all variables and given/known data eliminating c1 and c2 from y, y' and y'' to create a differential equation 2. Relevant equations I have the equation y = (c1 +c2x)e^x y' = c2e^x +(c1+c2x)e^x y'' = c2e^x + c2e^x + (c1+c2x)e^x) (from product rule) 3. The attempt at a solution I'm just not sure how to eliminate the constants. If I try to do y'' - y i still have constants left.