已知抛物线y=x^2+mx-2mx(m≠0)(1)该抛物线与x轴是否有两个不同的交点?请说明理由(2)国电P(0,n)作y轴的垂涎交该抛物线于点A和点B(点A在点P的左边)是否存在实数m,n使得AP=2PB?若存在,则
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![已知抛物线y=x^2+mx-2mx(m≠0)(1)该抛物线与x轴是否有两个不同的交点?请说明理由(2)国电P(0,n)作y轴的垂涎交该抛物线于点A和点B(点A在点P的左边)是否存在实数m,n使得AP=2PB?若存在,则](/uploads/image/z/5303111-23-1.jpg?t=%E5%B7%B2%E7%9F%A5%E6%8A%9B%E7%89%A9%E7%BA%BFy%3Dx%5E2%2Bmx-2mx%28m%E2%89%A00%EF%BC%89%EF%BC%881%EF%BC%89%E8%AF%A5%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%B8%8Ex%E8%BD%B4%E6%98%AF%E5%90%A6%E6%9C%89%E4%B8%A4%E4%B8%AA%E4%B8%8D%E5%90%8C%E7%9A%84%E4%BA%A4%E7%82%B9%3F%E8%AF%B7%E8%AF%B4%E6%98%8E%E7%90%86%E7%94%B1%EF%BC%882%EF%BC%89%E5%9B%BD%E7%94%B5P%EF%BC%880%2Cn%EF%BC%89%E4%BD%9Cy%E8%BD%B4%E7%9A%84%E5%9E%82%E6%B6%8E%E4%BA%A4%E8%AF%A5%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%BA%8E%E7%82%B9A%E5%92%8C%E7%82%B9B%EF%BC%88%E7%82%B9A%E5%9C%A8%E7%82%B9P%E7%9A%84%E5%B7%A6%E8%BE%B9%EF%BC%89%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8%E5%AE%9E%E6%95%B0m%2Cn%E4%BD%BF%E5%BE%97AP%3D2PB%3F%E8%8B%A5%E5%AD%98%E5%9C%A8%2C%E5%88%99)
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