多项式a2x3+ax2-4x3+2x2+x+1是关于x的二次多项式,求a2+1/a2+a.具体问题请看问题补充.多项式a2x3+ax2-4x3+2x2+x+1是关于x的二次多项式,求a2+1/a2+a想问一下为什么答案里说:由题意,a的平方-4=0,a=±2但是a=-2
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![多项式a2x3+ax2-4x3+2x2+x+1是关于x的二次多项式,求a2+1/a2+a.具体问题请看问题补充.多项式a2x3+ax2-4x3+2x2+x+1是关于x的二次多项式,求a2+1/a2+a想问一下为什么答案里说:由题意,a的平方-4=0,a=±2但是a=-2](/uploads/image/z/14942546-26-6.jpg?t=%E5%A4%9A%E9%A1%B9%E5%BC%8Fa2x3%2Bax2-4x3%2B2x2%2Bx%2B1%E6%98%AF%E5%85%B3%E4%BA%8Ex%E7%9A%84%E4%BA%8C%E6%AC%A1%E5%A4%9A%E9%A1%B9%E5%BC%8F%2C%E6%B1%82a2%2B1%2Fa2%2Ba.%E5%85%B7%E4%BD%93%E9%97%AE%E9%A2%98%E8%AF%B7%E7%9C%8B%E9%97%AE%E9%A2%98%E8%A1%A5%E5%85%85.%E5%A4%9A%E9%A1%B9%E5%BC%8Fa2x3%2Bax2-4x3%2B2x2%2Bx%2B1%E6%98%AF%E5%85%B3%E4%BA%8Ex%E7%9A%84%E4%BA%8C%E6%AC%A1%E5%A4%9A%E9%A1%B9%E5%BC%8F%2C%E6%B1%82a2%2B1%2Fa2%2Ba%E6%83%B3%E9%97%AE%E4%B8%80%E4%B8%8B%E4%B8%BA%E4%BB%80%E4%B9%88%E7%AD%94%E6%A1%88%E9%87%8C%E8%AF%B4%EF%BC%9A%E7%94%B1%E9%A2%98%E6%84%8F%2Ca%E7%9A%84%E5%B9%B3%E6%96%B9-4%3D0%2Ca%3D%C2%B12%E4%BD%86%E6%98%AFa%3D-2)
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