知唔知哩條點計
回答 (2)
2008-01-27 12:19 am
✔ 最佳答案
(5x)(6x)-(8op)(89o)．8p=30x^2-712po^2．8p
=30x^2-5696p^20^2
2008-01-31 4:09 am
不明你問乜.......
收錄日期: 2021-04-16 22:43:38
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080126000051KK01964