The solution of differential equation (x-y+2x-y) + (x y+x-2y dy - 0 is (a) x+y+ log (x - y+log (x+y) = c b) x+y+log (x* +y) + log (x+y) =c (c) x+y+ log (x +y')+

The solution of differential equation (x-y+2x-y) + (x y+x-2y dy - 0 is (a) x+y+ log (x - y+log (x+y) = c b) x+y+log (x* +y) + log (x+y) =c (c) x+y+ log (x +y')+ log (x- y) =c (d) x+y+log (x2 - y+log (x-y) =c