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Diferencia de cubos
a³ - b³ = (a - b)(a² + ab + b²)
8m³ - 27 =
2³m³ - 3³ =
(2m - 3)((2m)² + (2m)(3) + 3²) =
(2m - 3)(2²m² + 6m + 9) =
(2m - 3(4m² + 6m + 9)
Respuesta.
8m³ - 27 = (2m - 3)(4m² + 6m + 9)
8m³ - 27 =
Extraemos la raíces cubica de ambos términos.
8m³ - 27 =
(2m - 3) = (4m² + 6m + 9)
Respuesta :
(2m - 3) = (4m² + 6m + 9)