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Caso .
Suma de cubos.
Aplicas.
a³ + b³ =
(a + b)(a² - ab + b²)
64x³ - 125y³ =
4³x³ + 5³y³ =
(4x + 5y)((4x)² - (4x)(5y) + (5y)²) =
(4x + 5y)(4²x² - 20xy + 5²y²) =
(4x + 5y)(16x² - 20xy + 25y²)
Respuesta
Opcion. C