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TeuteuMan
@TeuteuMan
April 2019
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Svp aider moi :)
Juste le c )
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Omnes
Salut,
2x² - 3 = -5x
2*1² - 3 = 2 - 3 = -1
-5 * 1= -5
-5 ≠ -1 -> La solution n'est pas 1.
2*(-3)² - 3 = 2 * 9 -3 = 15
-5 * (-3) = 15 -> 15 = 15 -> La solution est -3
2*(1/2)² - 3 = 2 * 1/4 - 3 = 1/2 - 3 = 1/2 - 6/2 = -5/2
-5 * 1/2 = -5/2 -> -5/2 = -5/2 -< La solution est 1/2.
Il y a donc 2 solutions : 1/2 et -3.
Bonne soirée !
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Bonjour, pouver vous m'aider a faire ces exercice d'espagnol svp?c'est urgent, je dois le rendre lundi sur feuille merci d'avance :)
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Aider moi svp pour cette exo de math:)
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2x² - 3 = -5x
2*1² - 3 = 2 - 3 = -1
-5 * 1= -5
-5 ≠ -1 -> La solution n'est pas 1.
2*(-3)² - 3 = 2 * 9 -3 = 15
-5 * (-3) = 15 -> 15 = 15 -> La solution est -3
2*(1/2)² - 3 = 2 * 1/4 - 3 = 1/2 - 3 = 1/2 - 6/2 = -5/2
-5 * 1/2 = -5/2 -> -5/2 = -5/2 -< La solution est 1/2.
Il y a donc 2 solutions : 1/2 et -3.
Bonne soirée !