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WonderFxck
@WonderFxck
January 2021
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Bonsoir, j'ai besoins d'aide, les exercices sont le 77, le 17 et le 18 merci à toutes et à tous !
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winner123
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Bonsoir
je fais le 17 , le 18 est de la même forme donc tu feras et le reste est de la construction
( 5 - x) ( - 11 + x) = - 55 + 5 x + 11 x - x²
=
- x² + 16 x - 55
( x - 3 ) ( - x - 1) = - x² - x + 3 x + 3 =
- x² + 2 x + 3
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Bonsoir, j'ai besoins d'aide pour 2 exercices de maths merci de votre aide.
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Verified answer
Bonsoirje fais le 17 , le 18 est de la même forme donc tu feras et le reste est de la construction
( 5 - x) ( - 11 + x) = - 55 + 5 x + 11 x - x²
= - x² + 16 x - 55
( x - 3 ) ( - x - 1) = - x² - x + 3 x + 3 = - x² + 2 x + 3