一.1.已知x=1是方程x²+ax+2=0的一个实数根,则方程的另一个实数根为( ) A.-2 B.2 C.-3 D.32.若关于x的方程2x²-ax+a-2=0有两个相等的实数根,则a的值为( )A.-4 B.4 C.4或-4 D.2二.1.一元二次方程3x
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![一.1.已知x=1是方程x²+ax+2=0的一个实数根,则方程的另一个实数根为( ) A.-2 B.2 C.-3 D.32.若关于x的方程2x²-ax+a-2=0有两个相等的实数根,则a的值为( )A.-4 B.4 C.4或-4 D.2二.1.一元二次方程3x](/uploads/image/z/4112872-16-2.jpg?t=%E4%B8%80.1.%E5%B7%B2%E7%9F%A5x%3D1%E6%98%AF%E6%96%B9%E7%A8%8Bx%26%23178%3B%2Bax%2B2%3D0%E7%9A%84%E4%B8%80%E4%B8%AA%E5%AE%9E%E6%95%B0%E6%A0%B9%2C%E5%88%99%E6%96%B9%E7%A8%8B%E7%9A%84%E5%8F%A6%E4%B8%80%E4%B8%AA%E5%AE%9E%E6%95%B0%E6%A0%B9%E4%B8%BA%EF%BC%88+%EF%BC%89+A.-2+B.2+C.-3+D.32.%E8%8B%A5%E5%85%B3%E4%BA%8Ex%E7%9A%84%E6%96%B9%E7%A8%8B2x%26%23178%3B-ax%2Ba-2%3D0%E6%9C%89%E4%B8%A4%E4%B8%AA%E7%9B%B8%E7%AD%89%E7%9A%84%E5%AE%9E%E6%95%B0%E6%A0%B9%2C%E5%88%99a%E7%9A%84%E5%80%BC%E4%B8%BA%EF%BC%88+%EF%BC%89A.-4+B.4+C.4%E6%88%96-4+D.2%E4%BA%8C.1.%E4%B8%80%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8B3x%26%23)
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