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Caso diferencia de cuadrados
Aplicas.
a² - b² = (a + b)(a - b)
(x² - 25) + (x - 5)
(x² - 5²) + (x - 5) =
(x + 5)(x - 5) + (x - 5) = Sacas factor comun (x - 5)
(x - 5)(x + 5 + 1)
(x - 5)(x + 6)
Respuesta.
(x - 5)(x + 6)
(x-5)(x+6)
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