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onggia

14/08/2017 at 08:21
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Chứng minh số A=54^5-54^4 chia hết cho 54




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    Help you solve math 14/08/2017 at 08:29

         A=54^5-54^4=54^4 . (54-1)

    =>A=54^4 . 53

    Why A, for 53

       Good luck

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