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LOLVA
@LOLVA
April 2019
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Aidez moi svp ^^ Je n'ai rien compris^^
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jujitsuzakaria
A)
AB=x+4
AD=x+2
b)
S=AB×AD=(x+4)(x+2)
c)
S=(x+4)(x+2)
=x²+2x+4x+8
=x²+6x+8
D) Calculer l'aire de ABCD pour x= 5. (on remplace x par 5)
S = x² + 6x + 8 = 5² + 6×5 + 8 = 25 + 30 + 8 = 63
c'est tout !
0 votes
Thanks 1
LOLVA
Merci !
jujitsuzakaria
de rien
LOLVA
Et à oui j'ai oubliée une question, D) Calculer l'aire de ABCD pour x= 5.
jujitsuzakaria
la réponse a été modifiée !
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Lista de comentários
AB=x+4
AD=x+2
b)
S=AB×AD=(x+4)(x+2)
c)
S=(x+4)(x+2)
=x²+2x+4x+8
=x²+6x+8
D) Calculer l'aire de ABCD pour x= 5. (on remplace x par 5)
S = x² + 6x + 8 = 5² + 6×5 + 8 = 25 + 30 + 8 = 63
c'est tout !