a³-8-6a²+12a因式分解

问题描述:

a³-8-6a²+12a因式分解
1个回答 分类:数学 2014-10-18

问题解答:

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a³-8-6a²+12a
=a³-2³-6a(a-2)
=(a-2)(a²+2a+4)-6a(a-2)
=(a-2)(a²-4a+4)
=(a-2)(a-2)²
=(a-2)³
 
 
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