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Nina321
@Nina321
May 2019
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Bonjour, j'a encore une dernière fois besoin d'aide : Merci !
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caylus
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Bonsoir,
1) la solution de Delavega est fausse.
2) -2 n'est pas solution car (-2)² <5*(-2) => 4<-10 est faux.
3)
x²<5x==>x²-5x<0==>x(x-5)<0 Le trinôme a pour racine 0 et 5 est donc négatif entre ces racines 0<x<5
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Verified answer
Bonsoir,1) la solution de Delavega est fausse.
2) -2 n'est pas solution car (-2)² <5*(-2) => 4<-10 est faux.
3)
x²<5x==>x²-5x<0==>x(x-5)<0 Le trinôme a pour racine 0 et 5 est donc négatif entre ces racines 0<x<5