(x^2-2x)^2-2xy+x^2y 因式分解

（x^2+xy/x-y)/（xy/x-y)计算 (-x-y)(x^2+xy+y^2) 化简x^-y^/x^-2xy+y^ 2*(x-y)²(y-x)(xy) (x+y)/x /(x-(2xy-y^2)/x) 因式分解 代数 x^-y^/ x^-(y-z)^ 除以 x^+2xy+y^/(x-y)^-z^ 乘 x^+xy-xz/x^-xy X-Y/2X+2Y XY/X+Y² 因式分解：x×x-xy-2y×y-x-y (xy-x²)÷(x²-2xy+y²/xy)×（x-y/x²） x-y/x²÷x²-2xy+y²/xy*（xy-x²） .(x+y-2)(x+y-2xy)+(xy-1)^2 (x^2-xy)y÷y-x/xy怎么做? 因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y) (x-y)[(x+y)^2-xy]+(x-y)[(x-y)^2+xy] x^2-xy/xy-y^2约分 计算(-xy)(x+2x²y) (x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)答案应为-2x-x*x-3x， x根号x+x根号y/xy-y^2)-（x+根号xy+y/x根号x-y根号）y