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Aplicas.
Productos notables.
La suma por la diferencia de dos números.
(a + b)(a - b) = a² - b²
(9 - 6x³)(6x³ + 9)(81 + 36x⁶) =
(9 - 6x³)( 9 + 6x³)(81 + 36x⁶) = Aplicas el producto notable
(9² - (6x³)²(81 + 36x⁶)
(81 - 6²(x³)²(81 + 36x⁶)
(81 - 36x⁶)(81 + 36x⁶) = Vuelves aplicar el producto notable
(81)² - (36x⁶)² =
6561 - 36²(x⁶)² =
6561 - 1296x¹²
Respuesta.
6561 - 1296x¹²