" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2). 7a + 7ab - 3b - 3ab = 7a + 4ab -3b
2x + 3y - 4x -5y =2x - 4x + 3y - 5y
=-2x -2y
no.2
7a (1+b) - 3b (1 + a) =(7a x 1 + 7a x b)( -3b x 1 + -3b x a)
=(7a + 7ab )(-3b + -3ab)
=7a+7ab - 3ab - 3b
=7a + 4ab -3b