(a^2b^5)^1/2 (a^-4b)^-1/2?

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a^-4b^+2a+1. 再见_世界末日 2013-1-3. 下载知道客户端,10分钟内有问必答. 最佳答案. a^2-4b^2+2a+1 =a^2+2a+1-4b^2 =(a+1)^2-(2b)^2 =(a+2b+1)(a-2b ... - Read more

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