" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
90 = 2 x s² + 4s x 6
90 = 2s² + 24s
= 2s² + 24s - 90
= s² + 12s - 45
(s+15) ( s-3)
Jadi s = 3 karena s>0