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(a-b)(a²+b²)(a^4+b^4)(a+b) 用平方差公式怎么做
人气:154 ℃ 时间:2020-04-11 00:56:04
解答
(a-b)(a²+b²)(a^4+b^4)(a+b)
=(a-b)(a+b)(a²+b²)(a^4+b^4)
=(a²-b²)(a²+b²)(a^4+b^4)
=(a^4-b^4)(a^4+b^4)
=a^8-b^8
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