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引用第2樓~瘋人~於2006-10-06 17:28發表的“”:could u write it clearly
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引用第0樓anson1024於2006-10-06 11:27發表的“數學題”:given that n is a positive integer ,simplify the following expressions 2n+116x3_________.......
引用第5樓chiutszchun於2006-10-12 18:43發表的“”: 2n+116x3_________ n24x3.......
Sol.exp:16x3^2n+1 24x3^n16x3x3^2n 24x3^n16x3^2n 8x3^n2x3^2n 3^n2x3^n