问题标题:
【数学分式计算,(a²-4)分之2a-(a-2)分之1(x-3)分之1-(x+3)分之1(a²-4)分之2a-(a-2)分之1(x-3)分之1-(x+3)分之1(a²-4a+4)分之(a-1)÷(a²-4)分之(a²-1)【(x-2
问题描述:

【数学分式计算,(a²-4)分之2a-(a-2)分之1(x-3)分之1-(x+3)分之1

(a²-4)分之2a-(a-2)分之1

(x-3)分之1-(x+3)分之1

(a²-4a+4)分之(a-1)÷(a²-4)分之(a²-1)

【(x-2)分之3x-(x+2)分之x】×x分之(x²-4)

苏文源回答:
  (a²-4)分之2a-(a-2)分之1=2a/(a+2)(a-2)-(a+2)/(a+2)(a-2)=(2a-a-2)/(a+2)(a-2)=(a-2)/(a+2)(a-2)=1/(a+2)(x-3)分之1-(x+3)分之1=(x+3)/(x+3)(x-3)-(x-3)/(x+3)(x-3)=(x+3-x+3)/(x+3)(x-3)=6/(x²...
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