Exercice 1: Ecrire les expressions Suppression de parenthèses ci-dessous sous forme réduite:
B = 4x + 8 + (3x - 5) =
D = 2x+2-(3x - 5) =
E = 3x-6-(x + 7) =
F = x - (3x + 1) =
Meri de m'aider svp c pour demain
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Bonjour,
B = 4x + 8 + (3x - 5)
= 4x + 8 + 3x - 5
= 7x + 3
D = 2x + 2 - (3x - 5)
= 2x + 2 - 3x + 5
= -x + 7
E = 3x - 6 - (x + 7)
= 3x - 6 - x - 7
= 2x - 13
F = x - (3x + 1)
= x - 3x - 1
= -2x - 1
Réponse :
B = 4x + 8 + (3x - 5)
B = 4x + 8 + 3x - 5
B = 7x + 3
D = 2x + 2 - (3x - 5)
D = 2x + 2 - 3x + 5
D = -x + 7
E = 3x - 6 - (x + 7)
E = 3x - 6 - x - 7
E =2x - 13
F = x - (3x + 1)
F = x - 3x - 1
F = -2x - 1