Bonjour,
a)
E= x² -4x +4 + 3x² -x -6x +2
= 4x² -11x +6
b)
(x-2) ( x-2) +(x-2) ( 3x-1)
= (x-2) (x-2 +3x-1)
= (x-2) ( 4x -3)
c)
(x-2) ( 4x -3) =0
équation produit nul
soit
(x-2) = 0
x= 2
(4x-3) = 0
4x = 3
x=3/4 = 0,75
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
Bonjour,
a)
E= x² -4x +4 + 3x² -x -6x +2
= 4x² -11x +6
b)
(x-2) ( x-2) +(x-2) ( 3x-1)
= (x-2) (x-2 +3x-1)
= (x-2) ( 4x -3)
c)
(x-2) ( 4x -3) =0
équation produit nul
soit
(x-2) = 0
x= 2
soit
(4x-3) = 0
4x = 3
x=3/4 = 0,75