解方程|x+1|=2x+1
更新1:
點解x=-2/3要捨去?
點解x=-2/3要捨去?
收錄日期: 2021-04-23 23:28:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090814000051KK01914