题目
题型:解答题难度:简单来源:不详
小题1:
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072200-49212.gif)
小题2:
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072200-12292.gif)
小题3:
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072200-96538.gif)
答案
小题1:原式=
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072200-59896.gif)
=
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072201-67835.gif)
小题2:原式=
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072201-87944.gif)
=
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072201-90411.gif)
=
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072201-46542.gif)
小题3:原式=
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072201-22352.gif)
=
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072202-57107.gif)
=
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072202-29434.gif)
解析
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072159-38011.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072159-29963.png)
小题1:(1)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072153-92526.png)
小题2:(2)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072153-25096.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072153-90644.png)
小题3:(3) 若A=
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072153-10995.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072153-16731.png)
小题4:(4) 根据右边的数值转换器,当输入的
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072153-12303.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072154-35031.png)
请列式求出输出的结果.
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072154-55471.png)
小题5:(5)如果代数式(2x2+ax-y+6)-(2bx2-3x+5y-1)的值与字母x所取的值无关,试求代数式
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072154-20712.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072148-36800.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072149-84667.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072149-86311.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072149-97065.png)
…
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072149-73266.png)
…
小题1:从中你可发现什么规律?用含
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072149-28395.png)
小题2:用你发现的规律计算
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817072150-13639.png)
A.-![]() | B.a2+a3=a5 | C.a2·a3=a6 | D.(-2x)3=-6x3 |
A.-2xy2 | B.2xy | C.-2xy | D.2x2y |
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