已知二次函数y=x
2+qx+p的图象与x轴交于不同的两点A、B,顶点为C,且△ABC的面积S≤1.
(1)求q
2-4p的取值范围;
(2)若p,q分别为一个两位数的十位与个位数字,求出所有这样的两位数
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/201310201202526545409836/SYS201310201202526545409012_ST/0.png)
.
考点分析:
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