@[USERNAME]hey, do you understand the first part when he stated that ( d/dx +x ) y = 0, translates to dy/dx +xy = 0? I'm a little confused about that. i see from the first equation that was a give that dy/dx = f(x) = y. Therefore y should equal dy/dx, so shouldn't the equation be (d/dx)(dy/dx) = -xy?####[['( d/dx +x ) y = 0', 'Mathematical_Related_Concept', 'NEU'], ['dy/dx +xy = 0', 'Mathematical_Related_Concept', 'NEU']]