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数学
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2X/x²-64y² 减去1/X-8y得多少,.解析.
人气:420 ℃ 时间:2020-05-24 12:58:54
解答
2x/﹙x²-64y²﹚-1/﹙x-8y﹚
=2x/﹙x²-64y²﹚-﹙x+8y﹚/﹙x²-64y²﹚
=﹙x-8y﹚/﹙x-8y﹚﹙x+8y﹚
=1/﹙x+8y﹚.
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