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(a+1)x^2+(a+1)x-6a-6
人气:368 ℃ 时间:2020-05-11 12:10:56
解答
(a+1)x^2+(a+1)x-6a-6
=(a+1)x^2+(a+1)x-6(a+1)
=(a+1)(x^2+x-6)
=(a+1)(x+3)(x-2)
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