If x is an integer and y = 3x + 2 which of the following CANNOT be a divisor of y ?
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使用了代入法,不过此类题目真正的解法是什么?If x is an integer and y = 4x + 3 which of the following CANNOT be a divisor of y ?是一类吗?
使用了代入法,不过此类题目真正的解法是什么?If x is an integer and y = 4x + 3 which of the following CANNOT be a divisor of y ?是一类吗?
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