y^2+4y
8+2y
唔識化簡代數公式~help!
2009-10-16 3:09 am
回答 (3)
2009-10-16 3:12 am
✔ 最佳答案
(y^2 + 4y) / (8 + 2y)= y(y + 4) / 2(4 + y)
=y / 2
2009-10-16 3:13 am
(y^2+4y)/(8+2y)
=(y)(y+4)/2(y+4)<----factorization
=y/2<---cross out y+4
=(y)(y+4)/2(y+4)<----factorization
=y/2<---cross out y+4
收錄日期: 2021-04-21 22:05:37
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091015000051KK00980