" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
[(2x + 1)(2x + 1)] - [(2x - 1)(2x - 1)]
[2x(2x) + 2x(1) + 1(2x) + 1(1) ] - [2x(2x) + 2x(- 1) - 1(2x) - 1(- 1)]
[4x² + 2x + 2x + 1] - [4x² - 2x - 2x + 1]
[4x² + 4x + 1] - [4x² - 4x + 1]
4x² + 4x + 1 - 4x² + 4x - 1
(4x² - 4x²) + (4x + 4x) + (1 - 1)
8x
4x²+2x+2x+1 - 4x²-2x-2x+1
4x²+4x+1 - 4x²-4x+1
8x