题目
题型:解答题难度:一般来源:不详
小题1:(1)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063220-76417.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063221-89054.png)
答案
小题1:
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063221-49044.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063221-85655.png)
小题2:
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063221-14472.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063221-17226.png)
解:小题1::此题适合用十字相乘法解方程,如图所示:原方程可以化为:
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063222-17544.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063222-31699.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063222-70192.png)
小题2:此题中
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063222-65443.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063222-32092.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063223-89911.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063223-46440.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063218-64010.png)
A.– 6 | B.–3 | C.– 4 | D.–5 |
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063216-82931.png)
A.– 6 | B.–3 | C.– 4 | D.–5 |
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063214-68916.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063214-64233.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063214-72416.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063215-18973.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063215-31255.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063215-46595.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063214-72416.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063215-57041.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063215-31255.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063210-12948.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063210-55713.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063210-26138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063211-82281.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063211-25772.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063211-11833.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063210-26138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063211-71886.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063211-25772.png)
②
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063205-16274.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821063205-79839.png)
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