Ответ:
Объяснение:
81a^5-a=a(81^4-1)=a[(9a²)²-1]=a(9a²-1)(9a²+1)=
=a(3a-1)(3a+1)(9a²+1)
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Ответ:
Verified answer
Ответ:
Объяснение:
81a^5-a=a(81^4-1)=a[(9a²)²-1]=a(9a²-1)(9a²+1)=
=a(3a-1)(3a+1)(9a²+1)