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因式分解:(a²+2ab-4)(a²+2ab-2)+1
人气:164 ℃ 时间:2020-10-01 18:23:30
解答
(a²+2ab-4)(a²+2ab-2)+1
=(a²+2ab)²-6(a²+2ab)+9
=(a²+2ab-3)²
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