" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
3a² 15ab -9a² 3a²-3b
-2ab -10b² 6ab 2ab+2b²
a²+b 5ab+5b² -3a²-3ab a²-b²