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Charlou2
@Charlou2
May 2019
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Sachant que a= 9; b=-5 et c=-3 calculer C=-a+bc et calculer D= a( b-c) merci beaucoup je n'y arrive pas....
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myhang7
C
=-a+bc
C
=-9+(-5)x(-3)
C
=-9+15
C
=6
D
=
a(b-c)
D
=9(-5-(-3))
D
=
9(-5+3)
D
=9x(-2)
D
=-18
0 votes
Thanks 0
charlou2
merci mais je ne comprends pas pourquoi dans le D le(-5(-3)) devient (-5+3)
MAHAM
-(-3)=+3 propriété vu en classe
charlou2
merci
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5-2[4-(7+5)] ? merci pour votre aide
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Lista de comentários
C=-9+(-5)x(-3)
C=-9+15
C=6
D=a(b-c)
D=9(-5-(-3))
D=9(-5+3)
D=9x(-2)
D=-18