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Shakhelyah
@Shakhelyah
May 2019
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Bonjour pouvez vous m'aidez a répondre a ces deux questions avant demain merci:
Développer et factoriser(-6x-3)-(-7x+4)(-6x-3)
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Bonjour,
Développer :
( -6x-3 ) - ( -7x+4 )( -6x-3 )
= -6x - 3 - ( 42x²+21x-24x-12 )
= -6x - 3 - 42x² - 21x + 24x + 12
= - 42x² + 3x + 9
Factoriser :
( -6x-3 ) - ( -7x+4 )( -6x-3 )
= ( -6x-3 ) ( 1-(-7x+4 ))
= ( -6x-3 ) ( 1+7x-4 )
= ( -6x-3 ) ( 7x-3 )
= -2 ( 3x+1 )( 7x-3 )
0 votes
Thanks 0
shakhelyah
Merci bcp de ton aide si je peux t'aider n'hésite pas
Commentaires (4)
Bonjour ,
Voici la réponse :
1 votes
Thanks 1
shakhelyah
Merci bcp de toute facon j'avais trouvé la factorisation :)
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shakhelyah
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bonjour Je dois faire le premier b pour demain merci bcp de votre aide!!!
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urgent exercice 2 et exercice 3*A a faire pour demain merci d'avance
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Verified answer
Bonjour,Développer :
( -6x-3 ) - ( -7x+4 )( -6x-3 )
= -6x - 3 - ( 42x²+21x-24x-12 )
= -6x - 3 - 42x² - 21x + 24x + 12
= - 42x² + 3x + 9
Factoriser :
( -6x-3 ) - ( -7x+4 )( -6x-3 )
= ( -6x-3 ) ( 1-(-7x+4 ))
= ( -6x-3 ) ( 1+7x-4 )
= ( -6x-3 ) ( 7x-3 )
= -2 ( 3x+1 )( 7x-3 )
Voici la réponse :