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XPoisson
@XPoisson
April 2019
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Bonjour, pourriez-vous m'aider à résoudre cette équation : 5x² - 30x + 25 = 25
Merci d'avance !
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maudmarine
Verified answer
Bonjour,
5x² - 30x + 25 = 25
5x² - 30x + 25 - 25 = 0
5x² - 30x = 0
5x (x - 6) = 0
Un produit de facteurs est nul ssi l'un des facteurs est nul
Donc :
5x = 0 ou x - 6 = 0
x = 0
ou
x = 6
2 votes
Thanks 1
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Lista de comentários
Verified answer
Bonjour,5x² - 30x + 25 = 25
5x² - 30x + 25 - 25 = 0
5x² - 30x = 0
5x (x - 6) = 0
Un produit de facteurs est nul ssi l'un des facteurs est nul
Donc :
5x = 0 ou x - 6 = 0
x = 0 ou x = 6