[解題] 高中數學質數問題
題目出自對話式講義第一冊第9頁範例3
http://ppt.cc/ddXT
我的問題是解答寫這樣是不是忽略(5x+1)=-1及(3x-5)=-1的可能?
我知道算出來x=\=自然數所以不合但是萬一好死不死有解呢?
我是否上課要講-1部分也要討論才是完整解答?
請求指教?
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07/10 14:25, , 1F
07/10 14:25, 1F
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07/10 14:25, , 2F
07/10 14:25, 2F
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07/10 14:51, , 3F
07/10 14:51, 3F
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07/10 15:38, , 4F
07/10 15:38, 4F
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07/10 22:06, , 5F
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07/11 00:51, , 6F
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07/11 00:52, , 7F
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07/11 00:53, , 8F
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07/11 00:53, , 9F
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07/11 00:54, , 10F
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07/11 00:55, , 11F
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07/11 01:00, , 12F
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07/11 01:03, , 13F
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07/11 09:01, , 14F
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07/11 13:32, , 15F
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07/11 13:32, , 16F
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07/11 13:33, , 17F
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07/11 22:32, , 18F
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07/11 22:32, , 19F
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07/12 07:37, , 20F
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07/12 10:08, , 21F
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07/12 10:10, , 23F
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07/12 10:11, , 24F
07/12 10:11, 24F
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