更新1:
To : STEVIE- G Do you mind to tell us how to factorize 2k^4 + 8k^3 + 11k^2 + 6k + 1 to (k^2 + 2k + 1)(2k^2 + 4k + 1)?
Math Induction
2010-08-05 2:56 am
Prove by M.I. that 1^3 + 3^3 + 5^3 + 7^3 + ...... + (2n - 1)^3 = n^2(2n^2 - 1).
回答 (2)
2010-08-05 5:35 am
✔ 最佳答案
As follows:圖片參考：http://i707.photobucket.com/albums/ww74/stevieg90/01-146.jpg
2010-08-05 13:19:12 補充：
It's because we know that there will be a factor of (k+1)² in R.H.S., then we use Long Division to further factorize the polynomial.
2010-08-05 4:37 am
收錄日期: 2021-04-22 00:48:51
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100804000051KK01617