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第二十一章 二次根式

第二十一章 二次根式. 扎兰屯市第七中学宝黄金梁. 21.1 二次根式. 的式子叫做. 一般地，我们把形如. 二次根式，. 称为二次根号。. 解 :. 解 :. 解 :. 是一个非负数。. 一般地，根据算术平方的意义，有. 再见.

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第二十一章 二次根式

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  1. 第二十一章 二次根式 扎兰屯市第七中学宝黄金梁

  2. 21.1 二次根式

  3. 的式子叫做 一般地，我们把形如 二次根式， 称为二次根号。

  4. 解:

  5. 解:

  6. 解:

  7. 是一个非负数。

  8. 一般地，根据算术平方的意义，有

  9. 再见

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