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toutisi
@toutisi
January 2021
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Bonjour pouvez vous m'aider j'ai des difficulté pour ce type d'exercice :/
Merci d'avance !
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winner123
Verified answer
Bonjour
E = ( 5 x - 2)² - ( 5 x - 2) ( 3 x + 4)
1/ e = 25 x² - 20 x + 4 - ( 15 x² + 20 x - 6 x - 8)
E = 25 x² - 20 x + 4 - 15 x² - 20 x + 6 x + 8
E = 10 x² - 34 x + 12
2/ E = ( 5 x - 2) ( 5 x - 2 - 3 x - 4)
E = ( 5 x - 2) ( 2 x - 6)
3/ pour x = - 3
E = ( 5*-3 - 2) ( 2*-3 - 6)
E = ( 5*6) ( 2 *18)
E = 30 * 36 =
1080
1 votes
Thanks 1
toutisi
merci beaucoup je l'avais fait mais il y avait une erreur, maintenant j'ai compris pourquoi j'avais faux :)
winner123
tant mieux, tu m'en vois heureuse
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Bonjour pouvez vous m'aidez je n'y arrive vraiment pas :/ (exercice 3) Merci d'avance !
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Verified answer
BonjourE = ( 5 x - 2)² - ( 5 x - 2) ( 3 x + 4)
1/ e = 25 x² - 20 x + 4 - ( 15 x² + 20 x - 6 x - 8)
E = 25 x² - 20 x + 4 - 15 x² - 20 x + 6 x + 8
E = 10 x² - 34 x + 12
2/ E = ( 5 x - 2) ( 5 x - 2 - 3 x - 4)
E = ( 5 x - 2) ( 2 x - 6)
3/ pour x = - 3
E = ( 5*-3 - 2) ( 2*-3 - 6)
E = ( 5*6) ( 2 *18)
E = 30 * 36 = 1080