求(y^2-6x)dy/dx+2y=0的通解

1个回答

  • :∵(y²-6x)dy/dx+2y=0 ==>dy/y²-6xdy/y^4+2dx/y³=0 (等式两端同除y^4)

    ==>dy/y²+2xd(1/y³)+d(2x)/y³=0

    ==>d(1/y)=d(2x/y³)

    ==>1/y=2x/y³+C (C是积分常数)

    ==>y²=2x+Cy³

    ∴原方程的通解是y²=2x+Cy³.