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最好有步驟
maths題1題 急
2008-08-16 2:54 am
回答 (1)
2008-08-16 3:04 am
✔ 最佳答案
展開(2x-1)(2x+1)(4x+1)
=(4x2-1)(4x+1)
=16x3+4x2-4x-1
收錄日期: 2021-04-13 15:57:42
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080815000051KK02530