1 . 解方程:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfbde9de64b7d39936613e48d7120e51.png)
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名校
2 . 解方程:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5be4fd52e686b9ec837e0e3cbff4e0.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa09272e2eca6a0658c5187b5a0a652a.png)
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3 . 已知
是二元一次方程
的解,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0e131aba1d144b19ed4d25a9c49da34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd9c7fe0d4a522f8b0b22be65c16f408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.2 | C.![]() | D.![]() |
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4 . (1)已知
的平方根是
,
的立方根是2,求
的值;
(2)已知
和
是正数
的两个平方根, 求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f2416d1f75a45a314331146550832e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcee5c0f947e3b4514661d46f77d170.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19c4d71a4e47e49ceb6afba18a99c0a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ff2912fd8d93b6e692936d95b727c5.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/627a57cd9fdb1f586f35d9825b6bcc0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f9eb00e82665d0eccfd86c4cb4b7df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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5 . 解下列方程
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934eb47a28386883437b6fca1fb602ee.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ceafb86d7d0ef7cec8625cee4db8d23.png)
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6 . 定义新运算“
”,规定
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ef8e66a05484dea14593e2fba360f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c476e0daff3347a867ca2e120d9cda2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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7 . 解下列方程:
(1)
.
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94546c31729887e5fced5d16b06e2968.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e20bba7346059138e4df938742e6b35a.png)
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8 . 历史上的数学巨人欧拉最先把关于x的多项式用记号
来表示.例如
,把x等于某数时多项式的值用f(某数)来表示.例如
时多项式
的值记为
.
(1)已知
,求出
的值;
(2)已知
,
,求m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c58cbded0c91457fdf2ef7fd1e7db1ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef00713e73b8357cc7900144f5505bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acefdacd5c80d7bd7a515422b3ee6ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3579b53519f30b8527b1e9492120e7df.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45b82287f838244a5ac7f3db2f0312ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707e480de114938ef58d3868cbdf82d1.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca225e528036d0f815bb0c3f7ef60fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b5c28b9e7d19e322046b310effa31a.png)
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9 . 已知
.求:
(1)当
取何值时,
;
(2)当
取何值时,A比
大3.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53bbd06a960e159f6b2f9d88c463c7d9.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次
2024-04-07更新
|
63次组卷
|
2卷引用:河南省鹤壁市2023-2024学年七年级下学期月考数学试题
10 . 若代数式
和
互为相反数,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5e1725516933bb441200c903bfa1ef3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/553086e03105c838cd28997d55b5dd01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
A.1 | B.![]() | C.5 | D.![]() |
您最近一年使用:0次
2024-04-07更新
|
65次组卷
|
2卷引用:河南省鹤壁市2023-2024学年七年级下学期月考数学试题