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Exercice 1:

Développer et simplifier les expressions suivantes :
A = 4(x + 2)
B = (2 + y) x 3
C = 2x(x + 3)
D = 3(x + y + 2)

Exercice 2
Factoriser les expressions suivantes :
E = 4x + 4y
F = x x x + 3xx
G = 4x + x2

Sagot :

DGESSON

Réponse:

exo 1

A = 4x + 8

B = 3y + 6

C = 2x carré + 6x

D = 3x + 3y + 6

exo 2

E = 4 ( x + y )

F = x ( x + 3 )

G = 2( 2 ) = 2 carré