因式分解:(a+b)^2(ab-1)+1
人气:250 ℃ 时间:2020-04-16 20:54:34
解答
(AB-1)(A+B)^2+1 =(AB-1)A^2+(AB-1)B^2+2AB(AB-1)+1 =(AB-1)A^2+(AB-1)B^2+2(AB)^2-2AB+1 =(AB-1)A^2+(AB-1)B^2+(AB)^2+(AB)^2-2AB+1 =(AB-1)A^2+(AB-1)B^2+(AB)^2+(AB^2-2AB+1) =(AB-1)A^2+(AB-1)B^2+(AB)^2+(AB-1)...
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