x^3(a+1)-xy(x-y)(a-b)+y^3(b+1)因式分解

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x^3(a+1)-xy(x-y)(a-b)+y^3(b+1)因式分解
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x^3(a+1)-xy(x-y)(a-b)+y^3(b+1)因式分解
x^3(a+1)-xy(x-y)(a-b)+y^3(b+1)因式分解

x^3(a+1)-xy(x-y)(a-b)+y^3(b+1)因式分解
x³(a+1)-xy(x-y)(a-b)+y³(b+1)
=x³(a-b+b+1)-xy(x-y)(a-b)+y³(b+1)
=x³(a-b)+x³(b+1)-xy(x-y)(a-b)+y³(b+1)
=(x³+y³)(b+1)+[x³-xy(x-y)](a-b)
=(x+y)(x²-xy+y²)(b+1)+x(x²-xy+y²)(a-b)
=(x²-xy+y²)[(x+y)(b+1)+x(a-b)]
=(x²-xy+y²)(ax+x+by+y)
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x^3(a+1)-xy(x-y)(a-b)+y^3(b+1)因式分解 x^3(a+1)-xy(x-y)(a-b)+y3^(b+1) 因式分解 x^3(a+1)-xy(x-y)(a-b)+y3^(b+1) 因式分解 已知：A=X*X-3xy+y*y,B=2x*x+xy-3y*3y.求A+B,A-B,A+2B 已知a=x^+xy+y^ b=-3xy-x^求2A-3B 因式分解（x+y-2xy)(x+y-2)+(xy-1)^2设x+y=a,xy=b, 2x/x+y+2y/x+y a/a+b+b/a-b 1/3x²+2/4y-5/6xy解出来快 已知A=5x²y-3xy²+4xy；B=7xy²-2xy+x²y,且x+y=2,x-y=0,化简求-1/2（A+B)-A. 设A=x-xy,B=xy+y²,求：（1）A+B（2）3A-B 数学计算题(追加赏分)(1) 2x-2y+3xy(x-y)(2) 5(a+b)(y-x)-2a(a+b)(x-y) [1]a(x-2y)-b(2y-x)+d(2x-4y) [2]x平方-2xy+y平方-2x+2y+1 【3】一（a-x)(a-y）-x(y-a)(X-a)[1]a(x-2y)-b(2y-x)+d(2x-4y) [2]x平方-2xy+y平方-2x+2y+1【3】一（a-x)(a-y）-x(y-a)(X-a) 分解因式,急求! 已知A=5x^+2xy-4y^,B=-x^-4xy+y^,C=x^-xy+3y^其中xy满足|2x+1|+(y-4)^=0,就A-2B+C已知A=5x^+2xy-4y^,B=-x^-4xy+y^,C=x^-xy+3y^其中xy满足|2x+1|+（y-4)^=0,求A-2B+C-2B+C的值 已知A=2x²-5xy+2y²+x-2y,B=x²-5/2xy+y²-2x+y,且A-2B=3a,|x-a|+(y-1)²=0 a/x-y,b/3y-3x,c/x^2-2xy+y^2通分 因式分解30题(要过程)am+an+bm+bn x^2+5y-xy-5x x2+xy+2xz+x (a+b)x-(b+a)y -12x(x-y)-(y-x)x^2 2x^2+4x+2 x(x+z)-y(y+z) 2(x^2-3ab)+x(4a-3b) 4x^2+12xy+9y^2-25 x^4-16 16x^4-1 x^2+9x+8 x^2-10xy+24y^2 2x^2+15xy-8y^2 3x^2-6xy+3y^2 24x^2+22x-21 -x^2+4xy- 已知A=x²+3y²-5xy,B=2xy+2x²-y²,求:(1)3A-B (2)A-3B 已知A=4x^2-4xy+y^2,B=x^2+xy-5y^2.求：（1）A-3B(2)3A+B 若A=4x^2-4xy+y^2 B=x^2+xy-5y^2求 (1)A+B (2)B-3A