Bonjour,
Résoudre
(-2x+1)/(-5-4x) ≥ 0
-2x+1= 0
x= -1/-2
x= 1/2
-5-4x= 0
x= - 5/4
x -5/4 1/2
-2x+1 + Ф + Ф -
-5-4x + ║ - Ф -
(-2x+1)/(-5-4x) + ║ - Ф +
S= ] -∞ ; -5/4 [ U [ 1/2 ; + ∞[
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Bonjour,
Résoudre
(-2x+1)/(-5-4x) ≥ 0
-2x+1= 0
x= -1/-2
x= 1/2
-5-4x= 0
x= - 5/4
x -5/4 1/2
-2x+1 + Ф + Ф -
-5-4x + ║ - Ф -
(-2x+1)/(-5-4x) + ║ - Ф +
S= ] -∞ ; -5/4 [ U [ 1/2 ; + ∞[