x2+x2y-xy2-y3得值

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x2+x2y-xy2-y3得值x2+x2y-xy2-y3得值x2+x2y-xy2-y3得值x2+x2y-xy2-y3=x^2(x+y)-(x+y)y^2=(x+y)(x^2-y^2)=(x+y)(x+

x2+x2y-xy2-y3得值
x2+x2y-xy2-y3得值

x2+x2y-xy2-y3得值
x2+x2y-xy2-y3
=x^2(x+y)-(x+y)y^2
=(x+y)(x^2-y^2)
=(x+y)(x+y)(x-y)
=(x+y)^2(x-y)

x2+x2y-xy2-y3得值 因式分解：x3-y3-x2y+xy2 x3+x2y-xy2-y3= 已知x-y≠0 x2-x=7 y2-y=7 求x3+y3+x2y+xy2的值 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 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 x3+2x2y+2xy2+y3因式分解 6xy2-9x2y-y3+y 4xy2-4x2y-y3因式分解 分解公因式,4xy2-4x2y-y3, -3x2+2x2y+xy2 当x=2014求代数式(2x3一3x2y一2xy2)一(x3一2xy2十y3)十(一x3十3x2十y3)的值 因式分解4xy2-4x2y-y3 得多少?其中2和3都是指数 x+y=0 求x3+x2y+xy2+y3的值