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avatarRenardRaisonnable2449
Secondary V • 1yr.

Bonsoir, comment on isole le x dans l'équation de la quadratique suivante:

(x-4)puissance2=28,8(y+5)

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  • Explanation from Alloprof

    Explanation from Alloprof

    This Explanation was submitted by a member of the Alloprof team.

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    avatarKatia Kteacher check
    Team Alloprof • 1yr. edited May 2023

    Salut!


    Tu dois commencer par éliminer l'exposant 2 en effectuant l'opération inverse, soit une racine carrée :

    (x−4)2=28,8(y+5)

    (x−4)2=28,8(y+5)

    x−4=28,8(y+5)


    Puis, il ne reste plus qu'à déplacer la constante 4 de l'autre côté :

    x=28,8(y+5)+4


    Voilà! :)

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