" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Maka,
= 3(a² + b²)
= 3((a + b)² - 2ab)
= 3((-3)² - 2(-5))
= 3(9 + 10)
= 3(19)
= 57