if "X" is an integer,which of the following will produce an odd number?A.3x² +1 B.x²+2x
X是不等于0的整数
A.B都存在奇数和偶数的情况啊?
人气：185 ℃ 时间：2020-02-20 14:58:50
解答
你说的对,好像答案并不能确定为A,
确实经过运算,发现A和B都有奇偶两种情况的结果.
只有当X是0时,才能确定答案为A.
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