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二次根式怎么化简
更新时间: 2020-10-29 00:00:00  

首先需要将根式简化,式内数字皆化为整数,不能有分数。有假分数时转化为分数再简化,有平方时可以将平方数字先提到根号外,如果有字母刚好可以平方约出,需要加绝对值。分数上下都有根式时需要将分母有理化为整数,再进行计算。

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