今晚就需要!1、现有三个多项式:1/2a2(平方)+a-4,1/2a2(平方)+5a+4,1/2a2(平方)-a.请你选择其中两个进行加法或减法运算.(1)使结果不含常数项.(2)使结果不含二次项.PS:这题是2个小题
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![今晚就需要!1、现有三个多项式:1/2a2(平方)+a-4,1/2a2(平方)+5a+4,1/2a2(平方)-a.请你选择其中两个进行加法或减法运算.(1)使结果不含常数项.(2)使结果不含二次项.PS:这题是2个小题](/uploads/image/z/2825106-42-6.jpg?t=%E4%BB%8A%E6%99%9A%E5%B0%B1%E9%9C%80%E8%A6%81%211%E3%80%81%E7%8E%B0%E6%9C%89%E4%B8%89%E4%B8%AA%E5%A4%9A%E9%A1%B9%E5%BC%8F%EF%BC%9A1%2F2a2%EF%BC%88%E5%B9%B3%E6%96%B9%EF%BC%89%2Ba-4%2C1%2F2a2%EF%BC%88%E5%B9%B3%E6%96%B9%EF%BC%89%2B5a%2B4%2C1%2F2a2%EF%BC%88%E5%B9%B3%E6%96%B9%EF%BC%89-a.%E8%AF%B7%E4%BD%A0%E9%80%89%E6%8B%A9%E5%85%B6%E4%B8%AD%E4%B8%A4%E4%B8%AA%E8%BF%9B%E8%A1%8C%E5%8A%A0%E6%B3%95%E6%88%96%E5%87%8F%E6%B3%95%E8%BF%90%E7%AE%97.%EF%BC%881%EF%BC%89%E4%BD%BF%E7%BB%93%E6%9E%9C%E4%B8%8D%E5%90%AB%E5%B8%B8%E6%95%B0%E9%A1%B9.%EF%BC%882%EF%BC%89%E4%BD%BF%E7%BB%93%E6%9E%9C%E4%B8%8D%E5%90%AB%E4%BA%8C%E6%AC%A1%E9%A1%B9.PS%EF%BC%9A%E8%BF%99%E9%A2%98%E6%98%AF2%E4%B8%AA%E5%B0%8F%E9%A2%98)
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