10(a+2)+5(a+2)(a+2)
= ???
= ???
= ???
= ???
=5(a+2)(a+4)
唔明點計到依個答案
請列出清楚步驟=]
收錄日期: 2021-04-16 00:50:19
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071225000051KK01913