ax^2-3x+6＞4化简为：ax^2-3x+2＞0因为不等式ax^2-3x+6＞4的解集为{x|x＜1或x＞b}所以x=1,x=b是ax^2-3x+2=0的解,将x=1代入可以求得a=1将a=1代入ax^2-3x+2＞0可得该不等式的解集为{x|x＜1或x＞2},b=2;将a=1,b=2代入ax...