抛物线与x轴交于A(x1,0)B(x2,0)且x1小于x2,与y轴交于C(0,-4),其中x1x2是方程x^2-4如图 抛物线与x轴交于A(x1,0) B(x2,0)两点,且x1>x2,与Y轴交于C(0,4),其中x1 x2是方程x的平方—2x—8=0 2010-12-31 22:09 提问者:
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![抛物线与x轴交于A(x1,0)B(x2,0)且x1小于x2,与y轴交于C(0,-4),其中x1x2是方程x^2-4如图 抛物线与x轴交于A(x1,0) B(x2,0)两点,且x1>x2,与Y轴交于C(0,4),其中x1 x2是方程x的平方—2x—8=0 2010-12-31 22:09 提问者:](/uploads/image/z/8668841-41-1.jpg?t=%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%B8%8Ex%E8%BD%B4%E4%BA%A4%E4%BA%8EA%28x1%2C0%29B%28x2%2C0%29%E4%B8%94x1%E5%B0%8F%E4%BA%8Ex2%2C%E4%B8%8Ey%E8%BD%B4%E4%BA%A4%E4%BA%8EC%280%2C-4%29%2C%E5%85%B6%E4%B8%ADx1x2%E6%98%AF%E6%96%B9%E7%A8%8Bx%5E2-4%E5%A6%82%E5%9B%BE+%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%B8%8Ex%E8%BD%B4%E4%BA%A4%E4%BA%8EA%EF%BC%88x1%2C0%29+B%28x2%2C0%29%E4%B8%A4%E7%82%B9%2C%E4%B8%94x1%3Ex2%2C%E4%B8%8EY%E8%BD%B4%E4%BA%A4%E4%BA%8EC%280%2C4%29%2C%E5%85%B6%E4%B8%ADx1+x2%E6%98%AF%E6%96%B9%E7%A8%8Bx%E7%9A%84%E5%B9%B3%E6%96%B9%E2%80%942x%E2%80%948%3D0+2010-12-31+22%3A09+%E6%8F%90%E9%97%AE%E8%80%85%EF%BC%9A)
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