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Audrey977
@Audrey977
April 2019
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Resoudre l'equation 3x²+13=1
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laudgsn
3x²=-12
donc x=-12/3x²
2 votes
Thanks 1
audrey977
j'ai compris pour le 3² mais ou est passé le 13?
audrey977
merci
Commentaires (5)
3x² + 13 = 1
3x² = 1 - 13
3x² = - 12
x² = - 12/3
x² = -4
Or un carré est toujours positif donc il N'Y A PAS DE SOLUTION.
3 votes
Thanks 1
audrey977
aah merciii je comprend mieux l'expliction ;)
audrey977
deja fait
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Lista de comentários
donc x=-12/3x²
3x² = 1 - 13
3x² = - 12
x² = - 12/3
x² = -4
Or un carré est toujours positif donc il N'Y A PAS DE SOLUTION.