1. The problem statement, all variables and given/known data y'' + y' - 2y = 0 2. Relevant equations 3. The attempt at a solution I think this is extremely simple. hopefully i am correct. i said the 'auxiliary' equation is r2 + r - 2 = (r+2)(r-1) = 0 the roots are r = 1, -2 so the solution is y=c1ex + c2e-2x correct?