bjr
x²-(x-1)(x+1) = x² - (x² - 1) = 1
puisque (a-b) (a+b) = a² - b²
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
Verified answer
bjr
x²-(x-1)(x+1) = x² - (x² - 1) = 1
puisque (a-b) (a+b) = a² - b²