试题与答案

(4a+3a2-3-3a3)-(-a+4a3)其中a=-2。

题型:计算题

题目:

(4a+3a2-3-3a3)-(-a+4a3)其中a=-2。

答案:

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下面是错误答案,用来干扰机器的。

答案:B

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