更新1:
3x square2+x+1=0
3x2+x+1=0 solve?
回答 (4)
2015-11-18 2:38 am
x = [-1+/-sqrt(-11)]/6
no real roots
complex roots
x = [-1+/-i*sqrt(11)]/6
no real roots
complex roots
x = [-1+/-i*sqrt(11)]/6
2015-11-18 3:20 am
6+x+1=0
x+7=0
x = -7
x+7=0
x = -7
2015-11-18 2:38 am
6+x+1=0
x+7=0
x= -7
x+7=0
x= -7
2015-11-18 2:34 am
=6+x+1
=7+x
=7+x
收錄日期: 2021-04-21 15:21:49
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20151117183346AAixlaK