50分悬赏.抛物线y=x平方-2x+k与x轴交于a,b两点,与x轴交于c(0,-3),抛物线y=x平方-2x+k与x轴交于a,b两点,与x轴交于c(0,-3),A(-1,0) B(3,0) 表达式是:y= x平方-2x-3 抛物线y=x的平方-2x+k 与x轴
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![50分悬赏.抛物线y=x平方-2x+k与x轴交于a,b两点,与x轴交于c(0,-3),抛物线y=x平方-2x+k与x轴交于a,b两点,与x轴交于c(0,-3),A(-1,0) B(3,0) 表达式是:y= x平方-2x-3 抛物线y=x的平方-2x+k 与x轴](/uploads/image/z/9321457-49-7.jpg?t=50%E5%88%86%E6%82%AC%E8%B5%8F.%E6%8A%9B%E7%89%A9%E7%BA%BFy%EF%BC%9Dx%E5%B9%B3%E6%96%B9%EF%BC%8D2x%2Bk%E4%B8%8Ex%E8%BD%B4%E4%BA%A4%E4%BA%8Ea%2Cb%E4%B8%A4%E7%82%B9%2C%E4%B8%8Ex%E8%BD%B4%E4%BA%A4%E4%BA%8Ec%EF%BC%880%2C%EF%BC%8D3%29%2C%E6%8A%9B%E7%89%A9%E7%BA%BFy%EF%BC%9Dx%E5%B9%B3%E6%96%B9%EF%BC%8D2x%2Bk%E4%B8%8Ex%E8%BD%B4%E4%BA%A4%E4%BA%8Ea%2Cb%E4%B8%A4%E7%82%B9%2C%E4%B8%8Ex%E8%BD%B4%E4%BA%A4%E4%BA%8Ec%EF%BC%880%2C%EF%BC%8D3%29%2CA%EF%BC%88-1%2C0%EF%BC%89+B%EF%BC%883%2C0%EF%BC%89+%E8%A1%A8%E8%BE%BE%E5%BC%8F%E6%98%AF%3Ay%3D+x%E5%B9%B3%E6%96%B9-2x-3+%E6%8A%9B%E7%89%A9%E7%BA%BFy%3Dx%E7%9A%84%E5%B9%B3%E6%96%B9-2x%2Bk+%E4%B8%8Ex%E8%BD%B4)
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