因式分解：x3-y3-x2y+xy2

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因式分解：x3-y3-x2y+xy2因式分解：x3-y3-x2y+xy2因式分解：x3-y3-x2y+xy2x3-y3-x2y+xy2=(x-y)(x2+xy+y2)-xy(x-y)=(x-y)(x2

因式分解：x3-y3-x2y+xy2
因式分解：x3-y3-x2y+xy2

因式分解：x3-y3-x2y+xy2
x3-y3-x2y+xy2 =(x-y)(x2+xy+y2)-xy(x-y)=(x-y)(x2+xy+y2-xy)=(x-y)(x2+y2)

x^3-y^3-x^2y+xy^2
=x^3-x^2y-y^3+xy^2
=x^2(x-y)-y^2(y-x)
=x^2(x-y)+y^2(x-y)
=(x^2+y^2)(x-y)

=x2(x-y)+y2(x-y)
=(x-y)(x2-y2)
=(x-y)(x-y)(x+y)
=(x-y)2(x+y)

因式分解：x3-y3-x2y+xy2 x3+2x2y+2xy2+y3因式分解 x3+x2y-xy2-y3= 因式分解:x3-2x2y+xy2 分解因式 x3+y3-x2y-xy2 x3-y3-x2y+xy2分解因式分解因式x3-xy2+x2y-y3 因式分解：6xy2-9x2y-y3 4xy2-4x2y-y3因式分解因式分解：-x3-4xy2+4x2y 解方程组 x3+y3=468 x2y+xy2=420 分解因式:X3+2X2Y+2XY2+Y3= 已知X大于Y,试比较X3-X2y+XY2与X2Y-XY2+Y3的大小. (4xy2-2x2y)-( )=x3-2x2y+4xy2+y3． x.y取何值时,代数(x3y+3x2y-5xy2+6y3)+(y3+2xy2+x2y-2x3)-(4x2y-x3-3xy2+7y3).y取何值时，代数（x3y+3x2y-5xy2+6y3）+（y3+2xy2+x2y-2x3）-（4x2y-x3-3xy2+7y3）的值都是常数? 试说明代数式(x3+3x2y-4xy2+6y3)-(2x3-x2y-xy2-y3-1)+(x34x2y+3xy2-7y3)的值与xy取值无关若m=x3-3x2y+2xy2+3y2 n=x3-2x2y+xy2-5y3,则2x3-7x2y+5xy2+14y2等于( )若m=x3-3x2y+2xy2+3y2 n=x3-2x2y+xy2-5y3,则2x3-7x2y+5xy2+14y2等于( )空里用字母表示 x4+y2x2+y4 x3+x2y-xy2-y3 (x2+x)-8(x2+x)+12 因式分解,x2表示x的两次当中有三题,看空格!