1.如果a+4有两个不相等的平方根,则a的取值范围是( )A.a>0 B.a≥0 C.a>-4 D.a≥-42.求下列式中的x(1)(x+1)²=1(2)(x-5)³+729=0(3)(2x+3)²=13.小强的房间地板
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![1.如果a+4有两个不相等的平方根,则a的取值范围是( )A.a>0 B.a≥0 C.a>-4 D.a≥-42.求下列式中的x(1)(x+1)²=1(2)(x-5)³+729=0(3)(2x+3)²=13.小强的房间地板](/uploads/image/z/2549642-50-2.jpg?t=1.%E5%A6%82%E6%9E%9Ca%2B4%E6%9C%89%E4%B8%A4%E4%B8%AA%E4%B8%8D%E7%9B%B8%E7%AD%89%E7%9A%84%E5%B9%B3%E6%96%B9%E6%A0%B9%2C%E5%88%99a%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%E6%98%AF%EF%BC%88+++%EF%BC%89A.a%EF%BC%9E0++++++++B.a%E2%89%A50++++++++C.a%EF%BC%9E-4++++++++D.a%E2%89%A5-42.%E6%B1%82%E4%B8%8B%E5%88%97%E5%BC%8F%E4%B8%AD%E7%9A%84x%EF%BC%881%EF%BC%89%EF%BC%88x%2B1%EF%BC%89%26%23178%3B%3D1%EF%BC%882%EF%BC%89%EF%BC%88x-5%EF%BC%89%26%23179%3B%2B729%3D0%EF%BC%883%EF%BC%89%EF%BC%882x%2B3%EF%BC%89%26%23178%3B%3D13.%E5%B0%8F%E5%BC%BA%E7%9A%84%E6%88%BF%E9%97%B4%E5%9C%B0%E6%9D%BF)
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