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数学
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3-X/X-2÷(X+2-(5/X-2)) 化简
X-2分之3-X除以(X+2- X-2分之5)
人气:309 ℃ 时间:2020-06-11 20:21:50
解答
3-x/(x-2)÷(xx-4-5)/(x-2)=3-x/(x-2)÷(x+3)(x-3)/(x-2)=3-x/(x+3)(x-3)=(3xx-27-x)/(x+3)(x-3)
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