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5a(a³ + 1)
5a (a + 1) (a² - a + 1)
Los tres factores son: a, (a+1), (a² - a + 1)...es la respuesta.
II) 4a²x³ - 4a²
4a² (x³ - 1)
4a² (x - 1) (x² + x + 1)
Los tres actores son: a² , (x-1), (x² +x +1)