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Sarahvincent05
@Sarahvincent05
April 2019
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C'est l'exo 36 merci pour votre aide je galère chère
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slyz007
Verified answer
A) f(41)=43x41-42²=(42+1)(42-1)-42²=42²-1-42²=-1
b) (x+2)²-(x+1)²=1
(x+2+x+1)(x+2-x-1)=1
2x+3=1
x=-1
c) 9998x10002=(10000-2)(10000+2)=10000²-4=100.000.000-4=99.999.996
1 votes
Thanks 1
sarahvincent05
merci beaucoup
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Aider moi svp c'est urgent je n'y arrive pas et c'est noter merci de bien m'aider
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Lista de comentários
Verified answer
A) f(41)=43x41-42²=(42+1)(42-1)-42²=42²-1-42²=-1b) (x+2)²-(x+1)²=1
(x+2+x+1)(x+2-x-1)=1
2x+3=1
x=-1
c) 9998x10002=(10000-2)(10000+2)=10000²-4=100.000.000-4=99.999.996