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> 下列二次根式中,是最简二次根式的是()A.B.C.D.-八年级数学
下列二次根式中,是最简二次根式的是()A.B.C.D.-八年级数学
题目简介
下列二次根式中,是最简二次根式的是()A.B.C.D.-八年级数学
题目详情
下列二次根式中,是最简二次根式的是 ( )
A.
B.
C.
D.
题型:单选题
难度:中档
来源:不详
答案
B
试题考查知识点:最简二次根式
思路分析:最简二次根式满足下列两个条件:(1)被开方数的因数是整数,因式是整式;(2)被开方数中不含能开得尽方的因数或因式
具体解答过程:
A.
;
B.
不能再化简了;
C.
;
D.
综上所述,与所给的选项对比可知,只有B选项是最简二次根式。
故选B
试题点评:熟悉定义是解题的关键。
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题目简介
下列二次根式中,是最简二次根式的是()A.B.C.D.-八年级数学
题目详情
答案
B
试题考查知识点:最简二次根式
思路分析:最简二次根式满足下列两个条件:(1)被开方数的因数是整数,因式是整式;(2)被开方数中不含能开得尽方的因数或因式
具体解答过程:
A.
B.
C.
D.
综上所述,与所给的选项对比可知,只有B选项是最简二次根式。
故选B
试题点评:熟悉定义是解题的关键。