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Anissalhk
@Anissalhk
May 2019
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Pourrai-je avoir de l'aide pour l'éxo 37
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loulakar
Verified answer
1)a) longueur AD :
x + 3 + x - 2 = 2x + 1
b) aire de ABCD :
(2x+1)(2x+1)=4x^2+2x+2x+1
(2x+1)(2x+1)= 4x^2 + 4x + 1
c) aire de ABEF :
(x+3)(2x+1)=2x^2+x+6x+3
(x+3)(2x+1)= 2x^2 + 7x + 3
d) aire de ECDF :
(x-2)(2x+1)=2x^2+x-4x-2
(x-2)(2x+1)= 2x^2 - 3x - 2
2)a) voir ci dessus pour les calculs de B et C !
Somme :
2x^2 + 7x + 3 + 2x^2-3x-2
4x^2 + 4x + 1
b) Verifier :
Oui c'est bien cela
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Anissalhk
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Je pourrais avoir de l'aide Svp je n'ai pas compris
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Est ce que cela est correct ? Merci .
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Verified answer
1)a) longueur AD :x + 3 + x - 2 = 2x + 1
b) aire de ABCD :
(2x+1)(2x+1)=4x^2+2x+2x+1
(2x+1)(2x+1)= 4x^2 + 4x + 1
c) aire de ABEF :
(x+3)(2x+1)=2x^2+x+6x+3
(x+3)(2x+1)= 2x^2 + 7x + 3
d) aire de ECDF :
(x-2)(2x+1)=2x^2+x-4x-2
(x-2)(2x+1)= 2x^2 - 3x - 2
2)a) voir ci dessus pour les calculs de B et C !
Somme :
2x^2 + 7x + 3 + 2x^2-3x-2
4x^2 + 4x + 1
b) Verifier :
Oui c'est bien cela