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Sagot :

SALUT45

Réponse:

A= -5×x+-5×4

= -5x+ -20

B=-3×x+3×1

= -3x+6

C=-4×5x+4×1

=-20x+4

HEYPOULOULOU123
A = -5(x+4)
A = -5x-20

B = -3(x-2)
B = -3x+6

C = -4(5x-1)
C = -20x+4

Ce que je viens de faire est le développement et la réduction mais on peut continuer stv :

A = -5x-20
-5x=20
x = 20/-5 = -4

B = -3x+6
-3x=-6
x = -6/-3 = 2

C = -20x+4
-20x = -4
x = -20/-4 = 5

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