" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
(a - b) (a + b) = a² - b²
....................................................................
(2y - 5)(2y + 5)
(2y¹)² - 5²
4y² - 25
Respuesta.
4y² - 25