" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
A)4p - 11q - 9r - (-8p + 10q - 9r)
= 4p - 11q - 9r + 8p - 10q + 9r
= 4p + 8p - 11q - 10q - 9r + 9r
= 12p - 21q
b)
x² + 10x² + 8y² - 7y² - 16 + 11
= 11x² + y² - 5