阅读下列材料:
,像
和
这样两个含有根式的代数式,它们的积不含根式,我们就说这两个代数式互为有理化因式,其中一个是另一个的有理化因式.
请运用上面的知识解决下列问题:
(1)指出
的有理化因式,并将
化简为分母中不含根式的式子;
(2)通过化简,比较
和
的大小关系;
(3)已知
,
.
①求a的值;
②结合①的结果,解方程:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f1e88c3cd03ea64d787833395c49fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c43104fdaad6d05744e0898b4646656c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3052f5c5a80e405b2b65062497693a03.png)
请运用上面的知识解决下列问题:
(1)指出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bade5f8f4dac596776c6aa06162d90c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c8f780b5464253afd10db76fc27a5d0.png)
(2)通过化简,比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c8f780b5464253afd10db76fc27a5d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2cb6806f8ecd6a85f9f44b786fbe7bb.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0280e20519448e760b000934efaae930.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32dd8a1750a64de287cf073755a6480b.png)
①求a的值;
②结合①的结果,解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0280e20519448e760b000934efaae930.png)
23-24八年级下·山东烟台·期中 查看更多[3]
山东省烟台市芝罘区烟台第十四中学2023-2024学年八年级下学期期中数学试题山东省烟台市芝罘区(五四制)2023-2024学年八年级下学期期中考试数学试题(已下线)暑假作业13 八年级下学期60道计算题专训(6大题型)-【暑假分层作业】2024年八年级数学暑假培优练(苏科版)
更新时间:2024-05-06 19:22:42
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