4x^2-12xy+9y^2-4x+6y-3.分解因式

因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y) 因式分解 x-xy+3y-3x 2x+xy-y-4x+5y-6 4x^2y+12xy+9y分解因式 2X^+XY-Y^-4X+5Y-6 2x^+xy-y^-4x+5y-6=? (x+y)(x+y+2xy)+(xy+1)(xy-1)(x+y)(x-y)+4(y-1) 4x-y/2根号x+根号y 9x-6根号xy+y/3根号x-根号y 已知X+Y=3,XY=-1,求2(X-Y)^4-9(X-Y)^2+12XY 因式分解30题(要过程)am+an+bm+bn x^2+5y-xy-5x x2+xy+2xz+x (a+b)x-(b+a)y -12x(x-y)-(y-x)x^2 2x^2+4x+2 x(x+z)-y(y+z) 2(x^2-3ab)+x(4a-3b) 4x^2+12xy+9y^2-25 x^4-16 16x^4-1 x^2+9x+8 x^2-10xy+24y^2 2x^2+15xy-8y^2 3x^2-6xy+3y^2 24x^2+22x-21 -x^2+4xy- 5x^3y*(-3y)^2+(-6xy)^2*(-xy)+xy^3*(-4x^2) 计算:2xy/(x+y)².(x+y)/4y 1-2/x+y=xy,4y+6x=xy.求xy的解? 4x^2+y^2-4x+6y+10=0,4x^2-12xy+9y^2 已知4x^2+y^2-4xy-12x+6y+9=0,求x,y的关系 xy-2{xy-[3x^2y-(4xy^2+0.5xy)]+4x^2y}+6xy^2 因式分解：x(y-3)-(2y-6) (x+y)^3-(x-y)^2(x+y) x(x^2-xy)-(4x^2-4xy) 分解公因式分解 x(y-3)-(2y-6) 2.(x+y)^3-(x-y)^2(x+y) 3.x(x^2-xy)-(4x^2-4xy) 4x^2(的2次方)-12xy+9y^2-4x+6y-3