Aidez moi svp en detaillant les calculs :9x²-(2x-1)²
(1-x)(3x-2)-2x(1-x)
(4x+7)² + 4x+7
Merci d'avance!
(1-x)(3x-2)-2x(1-x)
(4x+7)² + 4x+7
Merci d'avance!
More Questions From This User See All
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
= 9x² - 4x² - 1
= 5x² - 1
(1-x)(3x-2) - 2x (1-x)
= 1*3 + 1*(-2) + (-x)*3 + (-x)*2 - 2x*1 -2x*x
= 3 -2 -3x - 2x - 2x - 2x²
= 1 - 7x - 2x²
(4x + 7)² + 4x + 7
=16x² + 49 + 4x + 7
16x² + 56 + 4x