GRE数学难题,which of the following CANNOT be expressed as the pr

问题描述:

GRE数学难题,
which of the following CANNOT be expressed as the product of exactly 2 consecutive integers?
A:(2)(3)(7)
B:(2)(3)(7)(11)
C:(3的平方)(11)(13)
D:(2)(5的平方)(13)
E:(2的平方)(3)(5)(7)
题目就是这样,由于我不会打平方,所以用文字表示.答案是选C,
1个回答 分类:英语 2014-11-07

问题解答:

我来补答
化简一下,如A 表示为6×7 B为21×22 以此类推,只有C不行
 
 
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