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Zac16
@Zac16
May 2019
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Bonjour j'aurai besoin d'aide pour ce DM de math . Merci (19 points)
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clemencebino
Ex 1 :
(3x² + 8) - (21 + x²)
11x² - 21x²
= -320
17x - (5x² + 9 -4x )
17x - 30x
= -13
(4x² + 7x + 21) - (x² + 2x - 13)
44 - (x² + 2x -13)
-11x²
=121x
1 votes
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Bonjour , J'aurais besoin d'aide pour cette exercices je doit faire une description du lieu et de la maison (10 lignes +) en prenant en compte un porche mais je n'arrive pas ! Besoin d'aide ! Merci
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(3x² + 8) - (21 + x²)
11x² - 21x²
= -320
17x - (5x² + 9 -4x )
17x - 30x
= -13
(4x² + 7x + 21) - (x² + 2x - 13)
44 - (x² + 2x -13)
-11x²
=121x