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LOLaidermoiplzz
@LOLaidermoiplzz
May 2019
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Bonjour aidez moi.
On considère A = (3X - 4) (x-5) + (-2X²+4X-6)
1) Développer et réduire A
2)Calculer A pour x=1, puis x=2.
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Bonjour ,
1/
A = 3x² - 15x - 4x + 20 - 2x² + 4x - 6
A = x² - 15x + 14
.
2/
- pour x = 1
A = 1² - 15 (1) + 14
A = 1 - 15 + 14
A = 0
- pour x = 2
A = 2² - 15 (2) + 14
A = 4 - 30 + 14
A = -12
1 votes
Thanks 2
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Lista de comentários
1/
A = 3x² - 15x - 4x + 20 - 2x² + 4x - 6
A = x² - 15x + 14 .
2/
- pour x = 1
A = 1² - 15 (1) + 14
A = 1 - 15 + 14
A = 0
- pour x = 2
A = 2² - 15 (2) + 14
A = 4 - 30 + 14
A = -12