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(a-1)(a-2)(a-3)(a-4)-3因式分解,
人气:345 ℃ 时间:2020-04-08 13:02:26
解答
(a-1)(a-2)(a-3)(a-4)-3=(a²-5a+4)(a²-5a+6)-3
=(a²-5a)²+10(a²-5a)+24-3
=(a²-5a)²+10(a²-5a)+21
=(a²-5a+3)(a²-5a+7)
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