" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
(x + 4)² - (x + 1)² < 0 (ingat: a² - b² = (a + b) (a - b) )
((x + 4) + (x + 1)) ((x + 4) - (x + 1)) < 0
(2x + 5) (3) < 0
6x + 15 < 0
6x < -15
x < - 15/6
x < - 5/2
semoga membantu :)