" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
(5a^2-15a+45) = (a^2-3a+9)(5)
Suma de cubos.
Aplicas.
a³ + b³ = (a + b)(a² - ab + b²)
a³ + 27 =
a³ + 3³ =
(a + 3)(a² - 3a + 3²) =
(a + 3)(a² - 3a + 9)
Factor común.
5a² - 15a + 45 = Sacas factor común 5
5(a² - 3a + 9)