1 . 回答下列各题:
(1)计算:
.
(2)求不等式组
的解.
(3)先化简,再求值
,其中x的值是方程
的根.
(1)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d37748a847ea07f86e9d8987fc41b0.png)
(2)求不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e43d080c3647643a56a853d0e4685d6.png)
(3)先化简,再求值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/668ff378ae340df95a355acaf5806bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8034dddd265a186e29172623e3b9eadf.png)
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2 . (1)求不等式组
的整数解,可按下列步骤完成解答:
①解不等式①,得:
②解不等式②,得:
③把不等式①和②的解集在数轴上表示出来:
④原不等式组的解为:
⑤原不等式组的整数解为:
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/410029de91aa64a49d81f35df1489d17.png)
①解不等式①,得:
②解不等式②,得:
③把不等式①和②的解集在数轴上表示出来:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/3/5abc164c-86c8-44db-8c59-1bdb001a0ffe.png?resizew=232)
④原不等式组的解为:
⑤原不等式组的整数解为:
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/488c8a8ed3c5ccbf289849967ad572d8.png)
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名校
3 . 解方程或不等式
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9c3a62a60d6980ce31614850fdeb0f4.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39832874059a4eba9897f2f1e741fa7.png)
(3)求不等式组
的最大整数解.
(4)解关于
的分式方程
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9c3a62a60d6980ce31614850fdeb0f4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39832874059a4eba9897f2f1e741fa7.png)
(3)求不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea34731ab35d0b4a20ece917d4095028.png)
(4)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3ae53c2c99b654c95e87623fc75eab4.png)
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4 . (1)解方程:
;
(2)解方程
;
(3)解方程组
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bedf894f1ce8ccdb64ddb3a86feb7b46.png)
(2)解方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f0f2225c51f88aa9fc4f783525fb0c2.png)
(3)解方程组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b402a08175027f5f4811f60ff4adeb5.png)
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名校
5 . 回答下面两题
(1)解方程组:
.
(2)解不等式组
,并把解集表示在数轴上.
(1)解方程组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9db95568c7b0de8f1bd421d3fd599345.png)
(2)解不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/751755737949b5e1d1e5e852331cf164.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/15/4ffdd2b1-f4b8-49ca-99b7-b71e4f8dda4d.png?resizew=223)
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6 . (1)化简求值:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28d061ad25fb0a0e2918c85ffe17ad4.png)
____________ .
(2)方程
的解![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28d061ad25fb0a0e2918c85ffe17ad4.png)
(2)方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28db4425b17092b429bf16bc7321b433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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7 . 解下列各题:
(1)因式分解:
;
(2)化简:
;
(3)解不等式:
.
(1)因式分解:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67937744c84defc44075d1b4486c3947.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b2d0d80ed900dfc56b4a5f87bf7cb72.png)
(3)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3db7dc6d6d563e64470ad7c0196b75a3.png)
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解题方法
8 . (1)已知全集
,集合
,集合
.求
;
(2)解关于
的不等式
;
(3)解不等式组:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0dc8098ad6f31bdd87771ca9cfa33a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37893eadbd288cc52be6de2b25b1434.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a05fd114fd9fcd8e0b95d231ae4f60b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b99ce9318621a5aa2ac283bc2231f069.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82be8d8a7e1cbddeafcbf0055e8730ea.png)
(3)解不等式组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/977b718e75027f54cd1f1fedab2547b6.png)
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9 . (1)计算:
.
(2)解不等式组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fbc17b6131a1d704a6850b86a13e0e.png)
(2)解不等式组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a8ce1e2d86cc4b582e819782976936.png)
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10 . (1)计算:
;
(2)解不等式组:
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c53295ce58f5d18af28bb31b874feec2.png)
(2)解不等式组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d983a1692ea916cc096a607b244770f1.png)
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