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Bonjourtoutlemonde
@Bonjourtoutlemonde
January 2021
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bonjour bonjouur,
pourriez-vous m'aider sur cette question :
h : x -> 4x² -7
quel est l'antécedent de -7 par h?
merci d'avance ^^.
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loulakar
Verified answer
Bonjour,
h(x) = -7
4x^2 - 7 = -7
4x^2 - 7 + 7 = 0
4x^2 = 0
x = 0
1 votes
Thanks 2
Bonjourtoutlemonde
ok merci beaucoup
Bonjourtoutlemonde
juste une derniere question si ca ne vous derange pas, h(x) et h : x est-ce que c'est pareil?
loulakar
Oui
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Verified answer
Bonjour,h(x) = -7
4x^2 - 7 = -7
4x^2 - 7 + 7 = 0
4x^2 = 0
x = 0