分解因式:(1)4xy2-4x2y-y3 (2)x2+6xy+9y2-4m2+4mn-n2 (3)a2-b2+2(ax-by)+x2-y2
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分解因式:(1)4xy2-4x2y-y3 (2)x2+6xy+9y2-4m2+4mn-n2 (3)a2-b2+2(ax-by)+x2-y2
分解因式:(1)4xy2-4x2y-y3 (2)x2+6xy+9y2-4m2+4mn-n2 (3)a2-b2+2(ax-by)+x2-y2
分解因式:(1)4xy2-4x2y-y3 (2)x2+6xy+9y2-4m2+4mn-n2 (3)a2-b2+2(ax-by)+x2-y2
我也不知道对不对哦
(1)-y[(x-y)^2+3x^2] (2)[(x+y)^2-4xy]-[(m-n)^2-2mn]
4xy2-4x2y-y3怎么分解因式?
分解公因式,4xy2-4x2y-y3,
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(a-b)m2+(b-a)n2 4xy2-4x2y-y3分解因式(a-b)m2+(b-a)n2 4xy2-4x2y-y3
4xy2-4x2y-y3 (2 3 是方)
4xy2-4x2y-y3因式分解
分解因式:(1)4xy2-4x2y-y3 (2)x2+6xy+9y2-4m2+4mn-n2 (3)a2-b2+2(ax-by)+x2-y2
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
(4xy2-2x2y)-( )=x3-2x2y+4xy2+y3.
3x2y+xy2-[2xy2-4x2y+(x2y-2xy2)]
分解因式 1)4x3+8x2-x-2 2)x3x2y-xy2-y3 3)x2y-xy2+2x-2y 4)x2-4y2-x+2y分解因式 1)4x3+8x2-x-2 2)x3x2y-xy2-y3 3)x2y-xy2+2x-2y 4)x2-4y2-x+2y 5)ac-bc-a2+2ab-b2 6)a3+a2b-a2c-abc 7)x2-2x-b2-2b 8)5a2m+6abm-10a2n-12abn9)-xy+bx+ay-ab 10)a(b-c)+a2-bc 11)x
分解因式:x3+xy2-2x2y
x3+y3--x2y--xy2分解因式在线等.3和2是指数!--减号急,要过程
若x3+y3=1000,x2y-xy=-496,则(x3-y3)+(4xy2-2x2y)-2(xy2-y3)= ----