单选题
In the expression above, a, b, and c are different numbers and each is one of the numbers 2, 3, or 5. What is the least possible value of the expression?
In the expression above, a, b, and c are different numbers and each is one of the numbers 2, 3, or 5. What is the least possible value of the expression?
【正确答案】
B
【答案解析】[解析] 先把繁分化简：
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要使该表达式值最小，则bc取最大值15，a取最小值2。
[*]
要使该表达式值最小，则bc取最大值15，a取最小值2。