(1)解方程:9(x﹣2)2=64.
(2)化简:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ba473326ff6afbd106ba8da0a04d618.png)
(3)解方程组:
;
(4)解不等式组:
.
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ba473326ff6afbd106ba8da0a04d618.png)
(3)解方程组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46eafde6d8f8a40becf8ca4fb758cea7.png)
(4)解不等式组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29e780213c3787648c7f4e14594927af.png)
更新时间:2019-05-16 18:18:40
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐2】小明在学完了平行四边形后,想对“四边形的不稳定性”和“四边形的判定”有更好的理解,做了如下的探究:他用8根木棍和一些钉子组成了正方形
和平行四边形
(如图1),且
,
在同一条直线上,点
落在边
上.经小明测量,发现此时
、
、
三个点在一条直线上,
,
.
![](https://img.xkw.com/dksih/QBM/2021/5/23/2727458795257856/2759001706577920/STEM/e653b9f3-3904-43c1-a584-7a729961e563.png?resizew=448)
(1)求
的长.
(2)设
的长度为
,则
__________(用含
的代数式表示).
(3)小明接着探究,在保证
,
位置不变的前提条件下,从点
向右推动正方形,直到四边形
刚好变为矩形时停止推动(如图2).若此时
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e82db9beb42a2d9249c78bce5be13613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a16f5621716bfef7a056a3f2712feb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f823053e8f9c9e659a21ee0c5c6adfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe5383ff62f7047721e61397694588a8.png)
![](https://img.xkw.com/dksih/QBM/2021/5/23/2727458795257856/2759001706577920/STEM/e653b9f3-3904-43c1-a584-7a729961e563.png?resizew=448)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b39addc1173a458af87ed5c5e3f06466.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5277fa450a0c513a86a74420f8ee99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)小明接着探究,在保证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df18221a720ba793a790ed941ab22885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
名校
【推荐2】(1)计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8648c7b87ef4135806f71710104d4df9.png)
(2)先化简,再求值:
,其中x是满足不等式组
的整数解
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8648c7b87ef4135806f71710104d4df9.png)
(2)先化简,再求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c18be5cd7a3e7cfe78044248a563d37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc1a6895064d547a15c34668b24c08af.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知y是x的一次函数,当x=3时,y=1;当x=-2时,y=-4.
(1)求这个函数的表达式;
(2)x为何值时,函数y的值为-1?
(1)求这个函数的表达式;
(2)x为何值时,函数y的值为-1?
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】解下列方程组
(1)(代入法)
(2)(加减法)
.
(1)(代入法)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56314c3ec46ab1bbb3e2c5b50a73a144.png)
(2)(加减法)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5befbb6ee8883a169388847c0fa79469.png)
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
【推荐2】计算、解不等式(组):
(1)计算
;
(2)计算
;
(3)解不等式:
;
(4)解不等式组:
.
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/463eac6ec25a90f8c97517163d9ad3d2.png)
(2)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf7daca0ec3fa130920932d25ce33e9.png)
(3)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcbafbcfe493f08dd2fcea38f2d5df42.png)
(4)解不等式组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e847cd105f4acd1b2515c9046afc19a7.png)
您最近一年使用:0次