4xy2-4x2y-y3因式分解
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4xy2-4x2y-y3因式分解
因式分解:x3-y3-x2y+xy2
分解公因式,4xy2-4x2y-y3,
因式分解4xy2-4x2y-y3 得多少?其中2和3都是指数
因式分解:6xy2-9x2y-y3
x3+2x2y+2xy2+y3因式分解
因式分解:-x3-4xy2+4x2y
(4xy2-2x2y)-( )=x3-2x2y+4xy2+y3.
4xy2-4x2y-y3 (2 3 是方)
4xy2-4x2y-y3怎么分解因式?
3x2y+xy2-[2xy2-4x2y+(x2y-2xy2)]
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
5xy2-【3xy2-(4xy2-2x2y)】+2x2y】+2x2y-xy2 化简,再求值
x3+x2y-xy2-y3=
试说明:无论x,y取何值时,代数式(x3+3x2y-5+6y3)+(y3+2xy2+x2y-2x3)-(4x2y-x3-3xy2+7y2)的值是常数.要具体过程,注意格式
若x3+y3=1000,x2y-xy=-496,则(x3-y3)+(4xy2-2x2y)-2(xy2-y3)= ----
因式分解:x3-2x2y+xy2