((x+2y)x^2+(x-y)(3x-y)-5y^2)÷2x
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((x+2y)x^2+(x-y)(3x-y)-5y^2)÷2x((x+2y)x^2+(x-y)(3x-y)-5y^2)÷2x((x+2y)x^2+(x-y)(3x-y)-5y^2)÷2x没有x的=(x
((x+2y)x^2+(x-y)(3x-y)-5y^2)÷2x
((x+2y)x^2+(x-y)(3x-y)-5y^2)÷2x
((x+2y)x^2+(x-y)(3x-y)-5y^2)÷2x
没有x的
=(x^2+4xy+4y^2+3x^2-4xy+y^2-5y^2)÷2x
=4x^2÷2x
=2x
2(x-y)²-3(x-y)(-y-x)
x(x-y)2-(y-x)3
[2/3x-2/x+y(x+y/3x-x-y)]/x-y/x
化简:{2/3x-2/(x+y)[(x+y)/3x-x-y]}/(x+y)/x
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化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x
因式分解x(x+y)(x-y)-x(x+y)^2
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
(x-y)(x-y)2(y-x) (x+2y-?)(x-2y+?)
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12(x+y)^3(y-x)/【4(x+y)^2(x-y)】
2分之x+y+3分之x-y;4(x+y)-(x-y)谢谢了,