" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Pakai rumus FOIL : First-first, outer-outer, inner-inner, last-last
Awal x awal, luar x luar, dalam x dalam, akhir x akhir
16 - 4√5 + 4√5 - 5
= 11