1 . 证明
肯定能被80整除.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d634482e1ed3b9a2d03810995ff383.png)
您最近一年使用:0次
2 . 已知
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7a281f6bd5bdcc3afe5555b4c81168b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8792eaab0b6464e5d07436c64aa751a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a977414a3ad65caf5eee28e0cd175de.png)
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3 . 分解因式:
(1)
.
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fecddb4535eae943fd2d598a3bb59fba.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc47536837a962b7f6c25749811193b.png)
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4 . 分解因式:
(1)
.
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49bed2ae939b1375ce7ca8a70d153cf4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ab6c5ac704d8031fd407233e98bd2a3.png)
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5 . 已知正方形
的边长为
,长方形
的相邻两边长分别为
,则正方形
与长方形
的面积之和等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b76a9062ae81256bc8108fa21c4a63c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
A.边长为![]() |
B.相邻两边长分别为![]() |
C.相邻两边长分别为![]() |
D.相邻两边长分别为![]() |
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6 . 把
分解因式时,应提取的公因式是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55f6da01ef2a5be738838fde5afcef0c.png)
A.2 | B.![]() | C.![]() | D.![]() |
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7 . 已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/580c642a7d696159a36000d9b5f4c29f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b116b1564318168685b534dfe321bfe.png)
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8 . 阅读下列分解因式的过程,再回答所提出的问题:
.
(1)上述分解因式的方法是____________,共应用了____________次;
(2)若分解因式
,则需应用上述方法____________次,结果是____________;
(3)分解因式:
(
为正整数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/243cf238794a595a86a9e55095c82b9e.png)
(1)上述分解因式的方法是____________,共应用了____________次;
(2)若分解因式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2023193718545c2815507a445736aa4.png)
(3)分解因式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9daac44562cba92f408838f0f0bd7287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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2023-09-12更新
|
123次组卷
|
3卷引用:14.3.1 提公因式法
9 . 简便计算:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c14f597ebd37e82ee49d3e32c8b60a56.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252f95f72b7df64d0f3ec0e0b842f9d8.png)
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10 . 把下列各式分解因式:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b1e9a4201af42ea85f7d25399c3b28e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/542879326ff2cb03db002b25614c658b.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beb596a745d5e3449b67a0ad5a8c6a47.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baed1092f96903d8c3f798511b0a724b.png)
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