1. The problem statement, all variables and given/known data We have the equation: [tex] y'(x)^2+2 (x+1) \left(y'(x)+x\right)+2 y(x)+2 x=0 [/tex] 2. The attempt at a solution None. I don't even know how to proceed with this problem, except for, of course, expansion. I tried the factorization method, but no luck here. I have a feeling I need to use substitution, buuut ... Any clue is helpful :) Thank you !