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If a and b are odd integers, which of the following is an even integer?A、a(b-4)
If a and b are odd integers, which of the following is an even integer?A、a(b-4)
游客
2025-02-23
34
管理
问题
If a and b are odd integers, which of the following is an even integer?
选项
A、a(b-4)
B、ab+4
C、(a+2)(b-4)
D、3a+5b
E、a(a+6)
答案
D
解析
a为奇数,则3a亦为奇数,b为奇数,则5b也为奇数,奇数+奇数=偶数,所以选择D。
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