a) vérifier que est solution de l' équation x2=-4x+21

By: USER9436
26 Agustus 2025 mathematiques 5 minutes
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Grade: Education Subject: mathematiques

a) vérifier que est solution de l' équation x2=-4x+21

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 vérifier que 3 est solution de l' équation x2=-4x+21 

en effet 3²=9 et 21-4*3=21-12=9

   
Answered on 26 Agustus 2025

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