因式分解81A^5 B^5-AB

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因式分解81A^5B^5-AB因式分解81A^5B^5-AB因式分解81A^5B^5-AB提取公因式=AB(81A^4B^4-1)=AB(9A^2B^2+1)(9A^2B^2-1)=AB(9A^2B^

因式分解81A^5 B^5-AB
因式分解81A^5 B^5-AB

因式分解81A^5 B^5-AB
提取公因式
=AB(81A^4B^4-1)
=AB(9A^2B^2+1)(9A^2B^2-1)
=AB(9A^2B^2+1)(3AB+1)(3AB-1)