" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
b. x^2 + 4x -1 - 2x^2 -4x = -x^2 -1
c. y^2 - 3 - 4y^2 -5y - 6 = -3y^2 - 5y -9
d. 5a -6 + ab -a -2ab +1 = 4a -ab -5