二次根式有意义,则x的取值范围是 .

二次根式有意义,则x的取值范围是  

答案

x5 

【考点】二次根式有意义的条件.

【分析】根据二次根式的意义,被开方数是非负数列出方程,解方程即可.

【解答】解:根据题意得:x50

解得x5

故答案为:x5

【点评】本题考查的是二次根式有意义的条件,掌握二次根式的被开方数是非负数是解题的关键.

 

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