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数学
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x^3+ax^2+ax+a-1因式分解谢谢了
人气:490 ℃ 时间:2020-05-08 05:15:11
解答
x^3+ax^2+ax+a-1
=a(x^2+x+1)+(x^3-1)
=a(x^2+x+1)+(x-1)(x^2+x+1)
=(x+a-1)(x^2+x+1)
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