中二數題=====5ab-3c-3ac+5b
回答 (3)
2007-04-16 7:38 am
✔ 最佳答案
5ab-3c-3ac+5b =5b(a+1) - 3c(a+1)
=(5b - 3c) (a + 1)
2007-04-16 7:53 am
5ab-3c-3ac+5b
=5ab+5b-3c-3ac
=5b(a+1)-3c(1+a)
=(5b-3c)(a+1)//
=5ab+5b-3c-3ac
=5b(a+1)-3c(1+a)
=(5b-3c)(a+1)//
收錄日期: 2021-04-29 18:29:32
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070415000051KK06610