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Cocobach
@Cocobach
May 2019
2
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Bonsoir, quelqu'un peut il m'aider pour cet exercice:
reconnaître une différence de deux carrés et factoriser
D= (x+1)au carré - 4
En vous remerciant d'avance
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Verified answer
Bonsoir
d = ( x + 1 - 2) ( x + 1 + 2)
d = ( x - 1) ( x + 3)
1 votes
Thanks 0
cocobach
merci beaucoup bonne soirée
nini999
Bonsoir :
D = (x+1)²-4
D = (x+1)²-2²
(x+1)²-2² il prend la forme de a²-b²= (a-b)(a+b)
Alors :
D = (x+1-2)(x+1+2)
D = (x-1)(x+3)
J’espère t'avoir t'aider
2 votes
Thanks 2
cocobach
Merci beaucoup pour votre aide, bonne soirée
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Verified answer
Bonsoird = ( x + 1 - 2) ( x + 1 + 2)
d = ( x - 1) ( x + 3)
D = (x+1)²-4
D = (x+1)²-2²
(x+1)²-2² il prend la forme de a²-b²= (a-b)(a+b)
Alors :
D = (x+1-2)(x+1+2)
D = (x-1)(x+3)
J’espère t'avoir t'aider