因式分解:4m3-9m= .
题型:填空题难度:一般来源:不详
因式分解:4m3-9m= . |
答案
m(2m+3)(2m-3) |
解析
本题考查因式分解 解题思路:先提公因式,再运用平方差公式,即4m3-9m=m(2m+3)(2m-3). |
举一反三
下列计算正确的是 ( )A.a—(3b—a)= —3b | B.a+a4=a5 | C.![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817073351-72507.gif) | D.![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817073351-17817.gif) ![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817073352-32093.gif) |
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把![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817073350-36992.png) 分解因式,正确结果是( )A.(a+2b)(a-2b) | B.a( ) | C.a(a+b)(a-b) | D.a![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817073350-86810.png) |
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分解因式:xy-x-y+1=__________________. |
(6分)化简![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817073346-25847.png) |
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