请问3（x-y）^3-6(y-x)^2怎么做,谢啦
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请问3（x-y）^3-6(y-x)^2怎么做,谢啦请问3（x-y）^3-6(y-x)^2怎么做,谢啦请问3（x-y）^3-6(y-x)^2怎么做,谢啦3（x-y）^3-6(y-x)^2=3(x-y)^
请问3（x-y）^3-6(y-x)^2怎么做,谢啦
请问3（x-y）^3-6(y-x)^2怎么做,谢啦
请问3（x-y）^3-6(y-x)^2怎么做,谢啦
3（x-y）^3-6(y-x)^2=3(x-y)^2(x-y-2)
=3(x-y)^3 -6(x-y)^2
=3(x-y)^2 (x-y-2)
3（x-y）^3-6(y-x)^2
=3（x-y）^3-6(x-y)^2
=（x-y）^2(3x-3y-6)
3（x-y）^3-6(y-x)^2
=3(x-y)³-6(x-y)²
=3(x-y)²[(x-y)-2]
=3(x-y)²(x-y-2)
（y-x）^4（x-y）^3+2（x-y）^6（y-x）
（x+y）/2- x-y/2=6 3(x+y)=4(x-y)
请问3（x-y）^3-6(y-x)^2怎么做,谢啦
2（x-y）²-3(x-y)(-y-x)
1.（（y+2x)(-2x+y)+4(x+2y)^2)/3y 2.（2(x-y)^3-8(x-y）^2(x+y)+6y(x-y)^2）/2（x-y)^2
[2(x-y)^5-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2[2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2
3y/x*x-y*y+x/x*x-2xy+y*y+6y*y/x*x*x-x*x*y-xy*y+y*y*y等于多少?
计算：（3x-4y）-[-（2y+x）+（x-3y）]-6x
因式分解3x^2(x-y)+6x(y-x)
【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=
请问如何因式分解(x+y)(2x-y)-3x-3y
请问如何化简(4x-y)/x^2y^2 - (x+y)/xy^3
｜x＋2y＋3｜＋（2x＋y）2＝0请问x－y＝?
x(x-y)2-(y-x)3
计算：1.（x-1)^2+2(1-x) 2.(x-y)/(x+3y)÷(x^2-y^2)/(x^2+6xy+9y^2)-2y/(x+y）1.（x-1)^2+2(1-x)2.(x-y)/(x+3y)÷(x^2-y^2)/(x^2+6xy+9y^2)-2y/(x+y）
2(2x+3y)(3x+2y)-(6x-y)(2x-5y)
x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20
{(x+y)/2+(x-y)/3=6 4(x+y)-3(x-y)=-20