(x-2y)^2-6(2y-x)(x+y)+9(x+y)^2因式分解

【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y) x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2 化简y(x+y)+(x+y)(x-y)-x^2 (x+y)(x-y)-(x-y)^2如题 (x+y)(x-y)-(x-y)^2 因式分解x(x+y)(x-y)-x(x+y)^2 计算:(x-y)^2*(y-x)^2*(x-y)^6 6(x+y)2-2(x-y)(x+y)因式分解 [(x-y)^2-(x+2y)(x-2y)]/y (x+y)^2+6(x+y)+9 计算:y-x分之x+y+x-y分之y-y-x分之2x-y [2(x-y)^5-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2[2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2 x^2(x-y)+(y-x) x(x-y)2-(y-x)3 3y/x*x-y*y+x/x*x-2xy+y*y+6y*y/x*x*x-x*x*y-xy*y+y*y*y等于多少? 【(x-y)^2+(x+y)(x-y)】除以 2x 因式分解3x^2(x-y)+6x(y-x) [(x-y)²+(x+y)(x-y)]除以2x 【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=