计算3/x-2+2/1-x

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计算3/x-2+2/1-x计算3/x-2+2/1-x计算3/x-2+2/1-x3/(x-2)-2/(x-1)=3(x-1)/(x-2)(x-1)-2(x-2)/(x-2)(x-1)=[3(x-1)-2

计算3/x-2+2/1-x
计算3/x-2+2/1-x

计算3/x-2+2/1-x
3/(x-2)-2/(x-1)
=3(x-1)/(x-2)(x-1)-2(x-2)/(x-2)(x-1)
=[3(x-1)-2(x-2)]/(x-2)(x-1)
=(3x-3-2x+4)/(x-2)(x-1)
=(x+1)/(x²-3x+2)

等于3分之X加4加X