5^x+3 - 5^x+1 = 24 /5
吾該快d解答啦..thz,超急喔
更新1:
吾該晒...
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收錄日期: 2021-04-23 20:42:27
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091111000051KK01089