题目
题型:填空题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062017-16519.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062017-85203.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062017-41506.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062017-32610.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062017-69777.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062017-50175.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062017-97793.png)
解析
①方程
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062017-16519.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062017-41506.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062017-68561.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062017-69777.png)
故正确答案为②④⑥,一元二次方程为③
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062016-61656.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062012-71288.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062012-40880.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062012-45711.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062012-42085.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062012-85107.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062013-93883.png)
老师说:小明解一元一次方程的一般步骤都知道却没有掌握好,因此解题时有一步出现了错误,请你指出他错在_________(填编号);
然后,你自己细心地解下面的方程:
(1)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062013-72783.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062013-31984.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062009-23314.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062010-81013.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062010-12195.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062010-79636.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062010-54477.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062010-65996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062006-24502.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062007-56392.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062005-83221.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821062005-52594.png)
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