先化简,再求值:
,其中
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8926c99940bd9782241bbc73771baf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1225fd03e8e8730dac8487dae5387635.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
更新时间:2023-11-03 22:38:57
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【推荐2】(1)计算:(2x﹣3)(2x+3)﹣(2x﹣1)2
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(2)解分式方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83302b120e152830a0eaff1739a39d8f.png)
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【推荐1】计算:
(1)
;
(2)
;
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ee071cd79ecb8b4d6d83bdb8adb2c08.png)
(4)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41e15345e3603a172094f33cf312d22.png)
(5)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec62bcec0dc10a7fb945935bbcb3acd.png)
(6)
(利用乘法公式简便运算)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f952946a6db0087a5e3c197a8e2701f9.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0162c763c06c146cafa8b2b18f93688.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ee071cd79ecb8b4d6d83bdb8adb2c08.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41e15345e3603a172094f33cf312d22.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec62bcec0dc10a7fb945935bbcb3acd.png)
(6)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/861c39585fd092dc5a9c7727b9ab3cd7.png)
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