因式分解 (2a+b)的平方-(2b-a)的平方
因式分解 (2a+b)的平方-(2b-a)的平方
数学人气:302 ℃时间:2019-12-26 09:41:11
优质解答
(2a+b+2b-a)(2a+b-2b+a)=(a+3b)(3a-b)
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