" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
= 2x -4x + 3y - 5y
= -2x - 2y
= 2x +2y
2. 9x² + 7x³ - 8x² - 5x³
= 9x² - 8x² + 7x³ - 5x³
= x² + 2x³
3. 7a (1 + b) - 3b(1+a)
= 7a + 7ab - 3b - 3ab
= 7ab - 3ab + 7a - 3b
= 4ab + 7a - 3b