1 . (1)
(2)
﹣9=0
(3)
+64=0
(4)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bd3e9892d8d5c6b371e081ad77a3dc.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048c7bcea5e7dbcd0a815f22338e978e.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f9071c39ecfc6c9063d65ee7e55cdf3.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3dd5769569b43d2a861b583f168b22c.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0acea91263996d415765c06d36ed9c7.png)
您最近一年使用:0次
2 . (1)计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a8d9802a84bda6ac70aa6d1ca510d0c.png)
(2)求下列各式中x的值:
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66c9a662435c3fd6eebddecc35024a75.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a8d9802a84bda6ac70aa6d1ca510d0c.png)
(2)求下列各式中x的值:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66c9a662435c3fd6eebddecc35024a75.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e03fb3c3a5ef0d5ae48cbbc81eb8096.png)
您最近一年使用:0次
3 . 如图,计划围一个面积为50
的长方形场地,一边靠旧墙(墙长为10m),另外三边用篱笆围成,并且它的长与宽之比为5:2.请你设计出一个合理的方案来围成满足要求的长方形场地.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f793fcfa981e4e3c34c9ccb7f1861a8d.png)
您最近一年使用:0次
2022-09-09更新
|
162次组卷
|
3卷引用:山东省德州市德城区第五中学北校区2023-2024学年七年级下学期期中数学试题
4 . 计算与解方程(组)
(1)-12018+
-|1-
|+
;
(2)(x+1)2=36;
(3)
;
(4)
.
(1)-12018+
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8deb3ffecd13e87e074f6c1ba562b873.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32fc89f443048cdf7162e8ec2e013546.png)
(2)(x+1)2=36;
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c98053cf6327cfdac504304aad81809.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1304d3b81f186545c456d91f1a7ae072.png)
您最近一年使用:0次
名校
5 . 若x满足
,求
的值.
解:设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/748c89266828de308c8049015c7f0ca5.png)
∴
.
请仿照上面的方法求解下面问题:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/18/f0591e24-569d-4654-89b5-5ea456f54ef4.png?resizew=164)
(1)若x满足
,求
的值;
(2)若x满足
,求代数式
的值;
(3)已知正方形ABCD的边长为x、E、F分别是AD、DC上的点,且
,长方形EMFD的面积是48,分别以MF、DF作正方形,求阴影部分的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e5c36c5bb7446be6e5027a27d8607d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/492d2922dbba102b50f89948766c4d15.png)
解:设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab88fdc36b2312b47ab44ed619a70c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/748c89266828de308c8049015c7f0ca5.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cf8186851e3272a9690b11dc30ed4e4.png)
请仿照上面的方法求解下面问题:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/18/f0591e24-569d-4654-89b5-5ea456f54ef4.png?resizew=164)
(1)若x满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9900050f3c51abf23617fa5553eb8524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88d3a735d04bfb4d940c0ab1e49cea4d.png)
(2)若x满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcabafc840e06614ec967fef7544228e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fced3a88b80a195bc26d75cdaca3fe3c.png)
(3)已知正方形ABCD的边长为x、E、F分别是AD、DC上的点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78ee4cbbb6c003435e0311c0735d0a64.png)
您最近一年使用:0次
2022-08-17更新
|
417次组卷
|
8卷引用:山东省青岛市市南区青岛第五十九中学2022-2023学年七年级下学期期中数学试题
山东省青岛市市南区青岛第五十九中学2022-2023学年七年级下学期期中数学试题江苏省宿迁市宿城区2021-2022学年七年级下学期期中数学试题(已下线)数学(苏科版A卷)-学易金卷:2022-2023学年七年级下学期期中考前必刷卷湖南省娄底市双峰县2022-2023学年七年级下学期期中数学试题福建省泉州实验中学2022-2023学年八年级上学期期末质量检测数学试题(已下线)专题21 完全平方公式与几何图形-【微专题】2022-2023学年七年级数学下册常考点微专题提分精练(苏科版)(已下线)(培优特训)专项1.4 完全平方公式-2022-2023学年七年级数学下册《同步考点解读·专题训练》(北师大版)河南省新乡市新乡高新技术产业开发区新一街中学2023-2024学年八年级上学期12月月考数学试题
6 . 求
值
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e68b2f176bd941d24fa9696c72df78b.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1489518e043ee39e6906876475a7674b.png)
您最近一年使用:0次
7 . 计算:
(1)计算:
;
(2)求x的值:
.
(1)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1951955407733ee1ba4d8a2eb8ede49.png)
(2)求x的值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34270a9ee735f06d0cd619b161538afd.png)
您最近一年使用:0次
8 . 计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0724aa8cefd602f84a7b372cd52c7d33.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0724aa8cefd602f84a7b372cd52c7d33.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a6d6a7017e2cba803877955688a7fd8.png)
您最近一年使用:0次
2022-08-11更新
|
73次组卷
|
2卷引用:山东省日照市五莲县2021-2022学年七年级下学期期中数学试题
9 . 解下列方程
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c17e82c3ba0055c217721fc5d9da848.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c17e82c3ba0055c217721fc5d9da848.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4fe426416d2f4208ac3b2ea6f643271.png)
您最近一年使用:0次
10 . (1)求满足下列各式x的值.
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6087a549f507e6efdaae5a79332e221b.png)
②
.
(2)计算
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b06800c802d33be62c19d1ed98e9f5f0.png)
②
.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6087a549f507e6efdaae5a79332e221b.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c757c499fe96095caa6255e28c63f2b.png)
(2)计算
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b06800c802d33be62c19d1ed98e9f5f0.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b580b6c6e80f4868f1f86de395d18952.png)
您最近一年使用:0次
2022-08-09更新
|
133次组卷
|
4卷引用:山东省滨州市滨城区2021-2022学年七年级下学期期中数学试题
山东省滨州市滨城区2021-2022学年七年级下学期期中数学试题山东省滨州市博兴县2021-2022学年七年级下学期期中数学试题 山东省滨州市滨城区2021-2022学年七年级下学期期中考试数学试题(已下线)期中押题预测卷02(考试范围:第1~4章)-2022-2023学年八年级数学上册重难题型全归纳及技巧提升专项精练(苏科版)