·已知实数a,b,c满足a=6-b,c2=ab-9,则a=_,b=_,c=_

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/04 06:36:27
·已知实数a,b,c满足a=6-b,c2=ab-9,则a=_,b=_,c=_

·已知实数a,b,c满足a=6-b,c2=ab-9,则a=_,b=_,c=_
·已知实数a,b,c满足a=6-b,c2=ab-9,则a=_,b=_,c=_

·已知实数a,b,c满足a=6-b,c2=ab-9,则a=_,b=_,c=_
a=6-b
c²=b(6-b)-9=-b²+6b-9=-(b-3)²
c²>=0
-(b-3)²>=0
(b-3)²

实数?那么,就有无数答案喽

自己做