" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
(a + b)^2 = a^2 + 2ab + b^2
Entonces reemplazando sería
(x + 7)^2 = x^2 + 14x + 49
Espero haberte ayudado.