已知关于x的一元二次方程x²-(1+2k)x+k²-2=0有两个实数根(1)求k的取值范围(2)当k为负整数时,抛物线y=x²-(1+2k)x+k²-2与x轴的交点是整数点,求抛物线解析式(3)若(2)中的抛物线
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![已知关于x的一元二次方程x²-(1+2k)x+k²-2=0有两个实数根(1)求k的取值范围(2)当k为负整数时,抛物线y=x²-(1+2k)x+k²-2与x轴的交点是整数点,求抛物线解析式(3)若(2)中的抛物线](/uploads/image/z/406553-41-3.jpg?t=%E5%B7%B2%E7%9F%A5%E5%85%B3%E4%BA%8Ex%E7%9A%84%E4%B8%80%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8Bx%26%23178%3B-%281%2B2k%29x%2Bk%26%23178%3B-2%3D0%E6%9C%89%E4%B8%A4%E4%B8%AA%E5%AE%9E%E6%95%B0%E6%A0%B9%281%29%E6%B1%82k%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%EF%BC%882%EF%BC%89%E5%BD%93k%E4%B8%BA%E8%B4%9F%E6%95%B4%E6%95%B0%E6%97%B6%2C%E6%8A%9B%E7%89%A9%E7%BA%BFy%3Dx%26%23178%3B-%EF%BC%881%2B2k%EF%BC%89x%2Bk%26%23178%3B-2%E4%B8%8Ex%E8%BD%B4%E7%9A%84%E4%BA%A4%E7%82%B9%E6%98%AF%E6%95%B4%E6%95%B0%E7%82%B9%2C%E6%B1%82%E6%8A%9B%E7%89%A9%E7%BA%BF%E8%A7%A3%E6%9E%90%E5%BC%8F%EF%BC%883%EF%BC%89%E8%8B%A5%EF%BC%882%EF%BC%89%E4%B8%AD%E7%9A%84%E6%8A%9B%E7%89%A9%E7%BA%BF)
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