" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2a. 3a (4a - 9) = 12a^2 - 27a
2b. (5x-3)(2x+5) = 10x^2 + 25x - 6x - 15 = 10x^2 + 19x - 15