已知抛物线y=x^2-(k+3)x+2k-1···急!已知抛物线y=x^2-(k+3)x+2k-1.问:设抛物线与x轴交于A,B两点(A在B的左边),顶点为C,C的纵坐标为m,求AB^2/m的值?
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![已知抛物线y=x^2-(k+3)x+2k-1···急!已知抛物线y=x^2-(k+3)x+2k-1.问:设抛物线与x轴交于A,B两点(A在B的左边),顶点为C,C的纵坐标为m,求AB^2/m的值?](/uploads/image/z/11525345-17-5.jpg?t=%E5%B7%B2%E7%9F%A5%E6%8A%9B%E7%89%A9%E7%BA%BFy%3Dx%5E2-%28k%2B3%29x%2B2k-1%C2%B7%C2%B7%C2%B7%E6%80%A5%21%E5%B7%B2%E7%9F%A5%E6%8A%9B%E7%89%A9%E7%BA%BFy%3Dx%5E2-%28k%2B3%29x%2B2k-1.%E9%97%AE%EF%BC%9A%E8%AE%BE%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%B8%8Ex%E8%BD%B4%E4%BA%A4%E4%BA%8EA%2CB%E4%B8%A4%E7%82%B9%EF%BC%88A%E5%9C%A8B%E7%9A%84%E5%B7%A6%E8%BE%B9%EF%BC%89%2C%E9%A1%B6%E7%82%B9%E4%B8%BAC%2CC%E7%9A%84%E7%BA%B5%E5%9D%90%E6%A0%87%E4%B8%BAm%2C%E6%B1%82AB%5E2%2Fm%E7%9A%84%E5%80%BC%3F)
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