把分式2(x-y)/5(x+y)(x-y)化简,得2/5(x+y)时,x,y必须满足的条件

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把分式2(x-y)/5(x+y)(x-y)化简,得2/5(x+y)时,x,y必须满足的条件把分式2(x-y)/5(x+y)(x-y)化简,得2/5(x+y)时,x,y必须满足的条件把分式2(x-y)/

把分式2(x-y)/5(x+y)(x-y)化简,得2/5(x+y)时,x,y必须满足的条件
把分式2(x-y)/5(x+y)(x-y)化简,得2/5(x+y)时,x,y必须满足的条件

把分式2(x-y)/5(x+y)(x-y)化简,得2/5(x+y)时,x,y必须满足的条件
x不等于Y