即ax^2－3x+2>0
代入x=1,则a－3+2=0
a=1
1+b=3,b=2那b等于什么b也是方程ax^2－3x+2=0的根
两根之和是3／a=3
即1+b=3
b=2解不等式ax的平方－〔ac＋b〕x＋bc＜0
已知不等式ax的平方－3x＋6＞4的解集为〔xb〕 求a和b
已知不等式ax的平方－3x＋6＞4的解集为〔x<1或>b〕 求a和b
数学人气：185 ℃时间：2020-05-19 12:04:19
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