Factorize : 64m³-729n³.
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64m³-729n³ [using a³-b³=(a-b)(a²+ab+b²)
(4m)³-(9n)³
(4m-9n)[(4m²)+(4m)(9n)+(9n²)]
(4m-9n)(16m²+36mn+81n²)
(4m)³-(9n)³
(4m-9n)[(4m²)+(4m)(9n)+(9n²)]
(4m-9n)(16m²+36mn+81n²)
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