x^2m+x^2n-3y^2m-3y^2 hhhhhhhhhhhhhhhhhhhhhhheeeeeeeeeeeeeeeellllllllllllllllpppppppppppppppp

x^2m+x^2n-3y^2m-3y^2 hhhhhhhhhhhhhhhhhhhhhhheeeeeeeeeeeeeeeellllllllllllllllpppppppppppppppp
Đăng phản hồi