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化简((a^2+b^2)^2-4a^2b^2)÷(a^2 -b^2)
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人气:240 ℃ 时间:2020-01-24 08:37:29
解答
[(a^2+b^2)^2-4a^2b^2]/(a^2 -b^2) =(a^4+b^4+2a^2b^2-4a^2b^2)/(a^2 -b^2) =(a^4+b^4-2a^2b^2)/(a^2 -b^2) =(a^2-b^2)^2/(a^2 -b^2) =a^2 -b^2 =(a+b)(a-b)
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