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a³-8-6a²+12a因式分解
人气:376 ℃ 时间:2020-03-31 08:01:39
解答
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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