要使(x²+ax+2)(-6x的立方)的展开式中不含x的四次方项,则a应等于( )a:6 b:要使(x²+ax+2)(-6x的立方)的展开式中不含x的四次方项,则a应等于( )a:6 b:-1 c:1/6 d:0
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![要使(x²+ax+2)(-6x的立方)的展开式中不含x的四次方项,则a应等于( )a:6 b:要使(x²+ax+2)(-6x的立方)的展开式中不含x的四次方项,则a应等于( )a:6 b:-1 c:1/6 d:0](/uploads/image/z/6967018-10-8.jpg?t=%E8%A6%81%E4%BD%BF%28x%26%23178%3B%2Bax%2B2%29%28-6x%E7%9A%84%E7%AB%8B%E6%96%B9%29%E7%9A%84%E5%B1%95%E5%BC%80%E5%BC%8F%E4%B8%AD%E4%B8%8D%E5%90%ABx%E7%9A%84%E5%9B%9B%E6%AC%A1%E6%96%B9%E9%A1%B9%2C%E5%88%99a%E5%BA%94%E7%AD%89%E4%BA%8E%28+%29a%3A6+b%3A%E8%A6%81%E4%BD%BF%28x%26%23178%3B%2Bax%2B2%29%28-6x%E7%9A%84%E7%AB%8B%E6%96%B9%29%E7%9A%84%E5%B1%95%E5%BC%80%E5%BC%8F%E4%B8%AD%E4%B8%8D%E5%90%ABx%E7%9A%84%E5%9B%9B%E6%AC%A1%E6%96%B9%E9%A1%B9%2C%E5%88%99a%E5%BA%94%E7%AD%89%E4%BA%8E%28+%29a%3A6+b%3A-1+c%3A1%2F6+d%3A0)
要使(x²+ax+2)(-6x的立方)的展开式中不含x的四次方项,则a应等于( )a:6 b:要使(x²+ax+2)(-6x的立方)的展开式中不含x的四次方项,则a应等于( )a:6 b:-1 c:1/6 d:0
要使(x²+ax+2)(-6x的立方)的展开式中不含x的四次方项,则a应等于( )a:6 b:
要使(x²+ax+2)(-6x的立方)的展开式中不含x的四次方项,则a应等于( )a:6 b:-1 c:1/6 d:0
要使(x²+ax+2)(-6x的立方)的展开式中不含x的四次方项,则a应等于( )a:6 b:要使(x²+ax+2)(-6x的立方)的展开式中不含x的四次方项,则a应等于( )a:6 b:-1 c:1/6 d:0
a=0