小學生數學題 83
所有跟帖:
• (m + 1)^3 - m^3 = 3m^2 + 3^m + 1 = n^2 -yma16- ♂ (658 bytes) () 11/21/2014 postreply 09:36:25
• (m + 1)^3 - m^3 = 3m^2 + 3^m + 1 = n^2 -yma16- ♂ (658 bytes) () 11/21/2014 postreply 09:36:25
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