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Laulau111
@Laulau111
January 2021
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comment résoudre l'équation de la question 3 urgent ? svp merci
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winner123
Verified answer
Bonsoir
soit 3 x - 1 = 0, soit 5 x + 2 = 0
donc soit 3 x = 1 et x = 1/3
soit 5 x + 2 = 0 donc 5 x = - 2 et x = - 2/5
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PAU64
Exercice 2 :
3) (3x - 1) (5x + 2) = 0
D'après la règle du produit nul :
3x - 1 = 0 ou 5x + 2 = 0
3x = 1 5x = - 2
x = 1/3 x = - 2/5
L'équation a donc deux solutions : S = {- 2/5 ; 1/3}.
2 votes
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Verified answer
Bonsoirsoit 3 x - 1 = 0, soit 5 x + 2 = 0
donc soit 3 x = 1 et x = 1/3
soit 5 x + 2 = 0 donc 5 x = - 2 et x = - 2/5
3) (3x - 1) (5x + 2) = 0
D'après la règle du produit nul :
3x - 1 = 0 ou 5x + 2 = 0
3x = 1 5x = - 2
x = 1/3 x = - 2/5
L'équation a donc deux solutions : S = {- 2/5 ; 1/3}.