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chopper45
@chopper45
June 2021
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Voici mes deux exercices de maths:
ex 1:
soit l'expression A=3(2x+3)-(2x+3)(5x-2)
a)développer l'experssion A
b)que vaut l'expression A si x vaut -2?
ex 2:
1)calculer A,B,C en detaillant les calculs et les resultats sous forme irréctudible
A=-36-6 fois (13-2fois (-4+1)au carré) B=-3 sur 2+21 sur 2 fois 5 sur 7
C=1 sur 7 -1 sur 3
_________________
1sur 7 +1
2)a) que peut-on dire des nombres A et B?
b)que peut-on dire des nombres A et C?
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chopper45
June 2021 | 0 Respostas
bonjour aider moi s'il vous plait
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