bonjour
A = 2a + 3b + 5a - 2b
= 7 a + b
B = 4a - 5b + 7 - a - 3b - 1
= 3 a - 8 b + 6
C = 8a + b -2-6b-9b + 10
= 8 a - 14 b + 8
Exercice 2
Réduire les expressions suivantes.
D = 2x2 + 4x + 5x2 – 2x
= 7 x² + 2 x
tu azs vu la méthode, continue
E = 6x2 – 3x + 9 - x2 + 5x – 17
F = x2 + 6x – 10 – 14x – x2 - 8
