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Pintodacosta50
@Pintodacosta50
April 2019
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Bonjours a tous merci de m aide piyr cela:
F=3(2x+9)+4(7-x)-12
Developpe et reduis F
Teste ton resultat pour x egal à 0;2 et 0,1
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saidmann93
F = 3(2x-9)+4(7-x)-12
= 6x-27+28-4x-12
= 2x-11
je te laisse faire les test
0 votes
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saidmann93
rectification première ligne j'ai mi - à la place de + du coup ça donne F=2x+43
pintodacosta50
Ok mais je n arrive pas je nai jamais donne cette matiere
pintodacosta50
Je comprend pas peut tu recrire ta reponse avec le plus cette foi mercii
saidmann93
3(2x+9)+4(7-x)-12 = 3*2x+3*9+4*7-4*x-12 = 6x+27+28-4x-12 = 2x+43
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Developpe puis reduis ses expressions 3(x+6)+2 4+3(2y-2) 7(2x+2)-6 9(x-6)+2x 3,5(2-x)+8,2 2(3+5x)+8(7-x)+4(x-1)
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Lista de comentários
= 6x-27+28-4x-12
= 2x-11
je te laisse faire les test