1. The problem statement, all variables and given/known data Solve the following differential equation: y' = (y/x) + (2x^3Cos(x^2)/y). 2. Relevant equations 3. The attempt at a solution You certainly can't separate variables here and you can't put it in the form in which you can find the integrating factor. This is not a Bernoulli equation and neither can it be solved by the y/x = z substitution. I am completely stumped!! Please help.