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a=b所以a=1(ab)^2-2ab+1+a^2-2ab+b^2=(ab-1)^2+(a-b)^2=0所以ab-1=0,ab=1a-b=0 ,b=1或a=-1
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出门在外也不愁作业，求解答。谢_百度知道
作业，求解答。谢
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AADCDDAABBBA有可能有错，检察一下
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出门在外也不愁求解答 谢谢_百度知道
求解答 谢谢
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专业数学老师，确保正确，望采纳
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太给力了，你的回答完美地解决了我的问题，非常感谢！
一线资深数学教师
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出门在外也不愁}