若不等式ax2 5x b>0的解集为｛x|1:3<x<1:2},则a, b 值？帮忙，附有详细过程，谢了
解:∵1/3热心网友a = -6 , b = -1热心网友解:∵1:3
a = -6 , b = -1
解:∵1:3
