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Vamica
@Vamica
May 2019
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Resoudre 2x² + 3x- 5 >- 5
j'ai juste besoin de confirmation
2x² + 3x- 5 >- 5 => 2x² + 3x >-5 +5 => 2x² + 3x >0 => x (2x + 3) >0
x>0 ou 2x+3>0 .....
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nadiab
Resoudre 2x² + 3x- 5 >- 5
2x²+3x-5+5 > 0
2x²+3x > 0
x(2x+3) >0
x=0 ou 2x+3=0
x= -3/2 S= ] -
∞ -3/2 [ ∪ ] 0 ; +∞ [
2 votes
Thanks 1
Commentaires (2)
Bonjour ,
2x^2 + 3x - 5 > -5
x (2x+3) > 0
x = 0
x = -3/2 .
S = ]-& ; -3/2 [ U ] 0 ; +&[ .
2 votes
Thanks 2
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Lista de comentários
2x²+3x-5+5 > 0
2x²+3x > 0
x(2x+3) >0
x=0 ou 2x+3=0
x= -3/2 S= ] -∞ -3/2 [ ∪ ] 0 ; +∞ [
2x^2 + 3x - 5 > -5
x (2x+3) > 0
x = 0
x = -3/2 .
S = ]-& ; -3/2 [ U ] 0 ; +&[ .