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> 当x=2时,二次根式的值为()A.B.C.9D.3或-八年级数学
当x=2时,二次根式的值为()A.B.C.9D.3或-八年级数学
题目简介
当x=2时,二次根式的值为()A.B.C.9D.3或-八年级数学
题目详情
当x=2时,二次根式
的值为( )
A.
B.
C.9
D.3或
题型:单选题
难度:偏易
来源:不详
答案
A
二次根式
=
=
=3所以A正确。
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题目简介
当x=2时,二次根式的值为()A.B.C.9D.3或-八年级数学
题目详情
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