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Zarate11
@Zarate11
April 2019
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Qui peut m'aider svp c'est mon dm pour demain sans l'exo 4 .
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Cactus
A) (3x+5)+(5x-3) = 0
3x+5+5x-3 = 0
8x = -2
x = -1/4
b) (3x-1)(x+2) = 3x^2 + 5
3x^2+6x-x-2 = 3x^2 +5
5x = 7
x = 7/5
^2 veut dire au carré
Voilà ;)
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3x+5+5x-3 = 0
8x = -2
x = -1/4
b) (3x-1)(x+2) = 3x^2 + 5
3x^2+6x-x-2 = 3x^2 +5
5x = 7
x = 7/5
^2 veut dire au carré
Voilà ;)