两边积分得+1+n2=lnx+hnCl 将n=代入化简得所求通解为y+x2+p2=(x2 又当x=时y=0,则得C=1. 所求特解为y+x2+y2=x2 Klnu 1 u ln x lnC 2 两边积分得 + + = + . 2 2 2 y x y Cx x y 将u = 代入化简得所求通解为 + + = 又当x = 1时y = 0,则得C = 1. . 2 2 2 所求特解为 y + x + y = x