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Exercice2
a) Réduire les expressions suivantes
A = 5(2x-3) + 5x +4 B = 3x - 7-2(4x - 5)
C = (2x - 1)(-2x +3)
D = x2 + 6x - 3x2 +5 - 2x - 7

Sagot :

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Réponse:

A=10x-6+5x+4

A=15x-2

B=3x - 7-8x+10

B= 11x+3

C = 2x - 1-2x +3

C= 2

D = x2 + 6x - 3x2 +5 - 2x - 7

D= x2+ 6x-6 +5-2x-7

D= x2 +4x -8

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