曲线x^2-xy-y^2-3x+4y-4=0与x轴的交点坐标是

因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y) 曲线x^2-xy-2y+2=0关于直线 x+y-1=0对称的曲线方程是A y^2-xy-x-y+2=0B y^2-xy-x+3y+4=0C y^2-xy+3x-y=0D x^2-xy-2x+2=0 曲线x^2-xy-y^2-3x+4y-4=0与x轴的交点坐标是 因式分解 x-xy+3y-3x 2x+xy-y-4x+5y-6 曲线x^2+y^2=x和曲线2xy=y的交点个数曲线 x^2 + y^2 = x和曲线 2xy = y 的交点个数?答案是4个交点， 化简：3x^2-[5xy-(x^y-3xy)+4x^2y-8xy] 化简2(x²y+xy)-3(x²y-xy)-4x²y （-3x^y+2xy)-( )=4x^+xy x²/xy-x/y 3x/4x+y - x-2y/4x+y (1-y/y+x)÷x/y²-x² (x+y)(x+y+2xy)+(xy+1)(xy-1)(x+y)(x-y)+4(y-1) x²-y²+5x+3y+4（x+y-2xy)(x+y-z)+(xy-1）² x^3y(-4y)^2+(-7xy)^2*(-xy)-5xy^3*(-3x)^2 5x^3y*(-3y)^2+(-6xy)^2*(-xy)+xy^3*(-4x^2) 计算:2xy/(x+y)².(x+y)/4y x^2-4xy+3y^2=（x-3y)(x-y)x^2-4xy+3y^2 怎么分解成（x-3y)(x-y) 3(x^2y+xy)-4(xy-2x^2y)-(-xy) 当x-y=2xy时,求4x-3xy-4y/xy XY(XY+3)+(XY+4)+4(X+Y+1)-(X+Y+2)