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Jelly19
@Jelly19
May 2019
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Bonjour. Je n'arrive pas a trouver la solution sur cette question :
Soit f la fonction définie par f (x) = -x² + 2x + 4.
Résoudre l'équation f (x) = 4
Pouvez-vous m'aider svp.
Merci d'avance.
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scoladan
Verified answer
Bonjour,
f(x) = 4
⇔ -x² + 2x + 4 = 4
⇔ -x² + 2x = 0
⇔ x(-x + 2) = 0
Donc 2 solutions : x = 0 et x = 2
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Verified answer
Bonjour,f(x) = 4
⇔ -x² + 2x + 4 = 4
⇔ -x² + 2x = 0
⇔ x(-x + 2) = 0
Donc 2 solutions : x = 0 et x = 2