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StylesCarp
@StylesCarp
April 2019
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!!!Bonjour tout le monde j'ai besoin d'aide !! C'est urgent !!
D= (5x-3)²
E=(2x-3)+ (2x+3)
F=(2x-3)+ (3-2x)
G=(3x+1)² + 9x² - 1
H= 5x (3+2x) - (6-x)²
I=(2x-3)+ (5x=4)+(2x-3)²
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winner123
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Bonjour
d = 25 x² - 30 x +9
e = 2 x -3 + 2x + 3 = 4 x
f = 2 x -3 + 3 - 2 x = 0
g = 9 x² + 6 x +1 + 9 x² -1 = 18 x² + 6 x
h = 15 x² + 10 x² - 36 - 12 x + x² = 26 x² - 12 x - 36
i = 2 x - 3 + 5 x - 4 + 4 x² - 12 x +9 = 4 x² - 5 x + 2
si toutefois c'est bien - à la place du signe =
1 votes
Thanks 1
StylesCarp
Merci et oui je me suis tromper :/ oui c'est un moins
winner123
donc c'est juste
StylesCarp
Merci :) Mais j'ai oublier de mettre qui fallait les developper :/
winner123
elles sont développées
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Verified answer
Bonjourd = 25 x² - 30 x +9
e = 2 x -3 + 2x + 3 = 4 x
f = 2 x -3 + 3 - 2 x = 0
g = 9 x² + 6 x +1 + 9 x² -1 = 18 x² + 6 x
h = 15 x² + 10 x² - 36 - 12 x + x² = 26 x² - 12 x - 36
i = 2 x - 3 + 5 x - 4 + 4 x² - 12 x +9 = 4 x² - 5 x + 2
si toutefois c'est bien - à la place du signe =