12*x^2*y+22*x*y^2-60*y^3

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)^2+12(x-y)+36 9(x-y)-12(y-x)^2 (x+y)(x-y)-(x-y)^2如题 (x+y)(x-y)-(x-y)^2 【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y) 12 x^2 y+22 x y^2 - 60 y^3 12*x^2*y+22*x*y^2-60*y^3 因式分解x(x+y)(x-y)-x(x+y)^2 因式分解(x+y)^2y^2-12(x+y)y^2+36y^2-y^4 [(x-y)^2-(x+2y)(x-2y)]/y 计算:y-x分之x+y+x-y分之y-y-x分之2x-y (X,Y) f(x,y)={12y^2,0 12y(x-y)^2-8(x-y)^3=? 求做因式分解12(x+y)^2+11(x+y)(x-y)+2(x-y)^2 因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y) 12（x+y）^3（y-x）/【4（x+y）^2(x-y)】 [12(x+y)^3+3(x+y)(x-y)^2]÷6(x+y)