解方程
72-x^2=0
2x^2-32=0
9x^2=24
12x^2=9
6x^2=-96
242=-18x62
12x^2-243=0
75x^2-9=0
28+8x^2=0
15+8x^2=0
(1-4x)^2-2=0
4(2x+1)6^2=1
收錄日期: 2021-04-12 23:03:58
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061121000051KK02367