" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
=> (4x + 4y - 2xy) + (10x - 15y + 25xy)
=> 4x + 10x + 4y - 15y - 2xy + 25xy
=> 14x - 11y + 23xy
=(2x+4y-2xy)+(10x-15y+25xy)
=2x+10x+4y-15y-2xy+25xy
=12x-11y+23xy
Semoga membantu :D