分解因式 x3+y3-x2y-xy2
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分解因式 x3+y3-x2y-xy2
分解因式 x3+y3-x2y-xy2
分解因式 x3+y3-x2y-xy2
x^3+y^3-x^2*y-x*y^2
=x^3-x^2*y+y^3-x*y^2
=x^2(x-y)+y^2(y-x)
=x^2(x-y)-y^2(x-y)
=(x^2-y^2)(x-y)
=(x+y)(x-y)^2
x^3+y^3-x^2y-xy^2
=(x+y)(x^2-xy+y^2)-xy(x+y)
=(x+y)(x^2-xy+y^2-xy)
=(x+y)(x-y) ^2
分解因式 x3+y3-x2y-xy2
x3-y3-x2y+xy2分解因式
分解因式x3-xy2+x2y-y3
分解因式:X3+2X2Y+2XY2+Y3=
分解因式:x3+xy2-2x2y
因式分解:x3-y3-x2y+xy2
x3+x2y-xy2-y3=
4xy2-4x2y-y3怎么分解因式?
x3+y3--x2y--xy2分解因式在线等.3和2是指数!--减号急,要过程
x3+2x2y+2xy2+y3因式分解
分解公因式,4xy2-4x2y-y3,
分解因式 x3+y3!
解方程组 x3+y3=468 x2y+xy2=420
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.
分解因式(a-b)m2+(b-a)n2 4xy2-4x2y-y3分解因式(a-b)m2+(b-a)n2 4xy2-4x2y-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