X-2乘以X-3分之2X-5减X-3分之1
X-2乘以X-3分之2X-5减X-3分之1
数学人气:720 ℃时间:2020-02-05 16:25:45
优质解答
(2x-5)/(x-2)(x-3)-1/(x-3) =(2x-5)/(x-2)(x-3)-(x-2)/(x-2)(x-3) =(2x-5-x+2)/(x-2)(x-3) =(x-3)/(x-2)(x-3) =1/(x-2)
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