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youyou052
@youyou052
January 2021
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Bonjour voici un exercice dont je n'ai rien compris
Exercice :
Parmi les 5 expressions obtenues ci-contre avec le menu Calcul formel de GeoGebra, indiquer et utiliser celle qui est la mieux adaptée pour résoudre chacune des équations :
a) f(x) = 0 ;
b) f(x) = 7 ;
c) f(x) = - 9 ;
d) f(x) = -5 ;
e) f(x) = 4x2
Donner un ensemble solution à chaque fois
Calcul formel
1. f(x)=4(x-1)2-9
2. f(x)=4(x-1)2-9
Developper: f(x)=4x2-8x-5
3. f(x)=4(x-1)2-9
Factoriser:f(x)=(2x-5)(2x+1)
4. f(x)-7=4(x-1)2-9-7
Développer:f(x)-7=4x2-8x-12
5. f(x)-7=4(x-1)2-9-7
Factorisent:f(x)-7=4(x-3)(x+1)
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