1 . 求
的值
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/113b3632a6884dd42917effdf2597ec4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/113b3632a6884dd42917effdf2597ec4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b267a6b198fbbc7564691595b12279.png)
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2 . 如图1,已知并排放置的正方形
和正方形
的边长分别为
、![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
, A、B、E三点在一直线上,且正方形
和正方形
的面积之差为 12.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/25/2431e42e-eedf-4c7c-a757-aed7f6b14e0e.png?resizew=139)
(1)用含有
、
的代数式,表示图中阴影部分的面积;
(2)
、
,则四边形
的面积是多少?
(3)图中正方形
绕点B顺时针旋转
后的对应图形
, 连接
、
,若四边形
的面积是
,求
、
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc7ee0ef8945ba1b90e59aed7cab889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ce41c1548ce8cfb04284ad9768878a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc7ee0ef8945ba1b90e59aed7cab889.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/25/2431e42e-eedf-4c7c-a757-aed7f6b14e0e.png?resizew=139)
(1)用含有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e68edd1a8e6746d55b632f78552e0540.png)
(3)图中正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc7ee0ef8945ba1b90e59aed7cab889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a639bcfc9a3f0acde45b26e9f8d2fbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d30252720ff0a2b1f105523e9aa3b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e60c2ca5725d220ea442c4244faeb4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2edb7865797f81851ee70d50b659133b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b837fd9c52f60bfb3b6852733abc790.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/25/a2531a89-7a63-4979-a5c3-d4fa93fc322b.png?resizew=163)
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3 . (1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d61924381f16492b34b5015bafe7360.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dd9bd46710185eec663132437e02afd.png)
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4 . 求下列x的值:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c68ee1bfb1c72c4d84acfc983c2b38d0.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c68ee1bfb1c72c4d84acfc983c2b38d0.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f617b16a2f80fcc8e1c8fe5294ec046d.png)
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5 . 求下列各式中x的值:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68274d689be359d3b37f44199ef77c7e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/493f20154220af4c375d661d0a2a6a2c.png)
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6 . 求下列各式中
的值.
(1)
.
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04b4b6ab026b6eadd20a9b409abb2ff.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52783c6cace84ca17ce6230a8f24948d.png)
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7 . 求下列各式中x的值
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a98001b17b58d4f4d5e59c612d58e0c2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f206662938dacb04bd7d98ea0d417d9.png)
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8 . 若
满足
,求下列各式的值.
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e967af94ba531213c946d76c4357846.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059d6df06a5b85848dc4fa33327f8e07.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd17fafc43cf29ef659196ec5d60c1c0.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e967af94ba531213c946d76c4357846.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059d6df06a5b85848dc4fa33327f8e07.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1250e8600e329e4525713484ca3b1dc.png)
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2023-12-09更新
|
134次组卷
|
4卷引用: 河南省开封市兰考县2023-2024学年八年级上学期期中考试数学试题
河南省开封市兰考县2023-2024学年八年级上学期期中考试数学试题河南省南阳市淅川县2020-2021学年八年级上学期期中数学试题广东省湛江市雷州市2023-2024学年八年级上学期期末数学试题(已下线)第03讲 平方差和完全平方公式(知识解读+达标检测)-2023-2024学年七年级数学下册《知识解读·题型专练》(浙教版)
9 . 计算:
(1)
;
(2)求式中x的值:
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c55cc099bb1d235b23a7f0d4ac2c326f.png)
(2)求式中x的值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6cdb39c91fea4729b8739e116b964a7.png)
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10 . 计算或者解方程
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34f4c1aea700ac5c7f22f907bcc39e22.png)
(2)
.
(3)
;
(4)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34f4c1aea700ac5c7f22f907bcc39e22.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d524fa8ba3d36b6167fb190ae32aa3.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd4f8b12a0598f83166e3dfeea730db.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/400d8f93774fbbd6f9e71f299f542373.png)
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