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数学
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求计算或化简a+b+2b^2/(a-b )
人气:283 ℃ 时间:2020-05-20 17:03:47
解答
原式=(a+b)(a-b)/(a-b)+2b^2/(a-b)
=(a^2-b^2)/(a-b)+2b^2/(a-b)
=(a^2-b^2+2b^2)/(a-b)
=(a^2+b^2)/(a-b)
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