Exercices:Le point sur les rappels Exercice 1: Supprimer les parenthèses
A=+(3x - 5)
= 3x - 5
+ devant les o, on ne change rien
opp
B=-(-3x+7) on change les signes
= + 3x - 7
- devant les , on prend les opposé
орр
C=-(- 4 x + 5)
= + 4 x - 5
D=+(6x-11)
= 6 x - 11
E = + (- 3 a +1)
= -3 at 1
opp
F=-(2 b + 5 )
=-26-5 bonjour desole de déranger je n'y arrive pas aidez moi svp​
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