(2)x-9/根號x+3(其中x大於等於0)
答案是3(x^2+2x+4)/x(x+2)
收錄日期: 2021-05-02 10:43:37
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20140504000015KK03526