DISEQUAZIONI ALGEBRICHE TERZO GRADO

DISEQUAZIONI ALGEBRICHE TERZO GRADO

Prof. Mauro La Barbera

x³ – 64x > 0
1. – 8 < x < 0 ; x > 8
2. x < – 8
3. 0 < x < 8
x³ + 64x > 0
1. x > 0
2. – 8 < x < 0 ; x > 8
3. 0 < x < 8
x³ + 64 > 0
1. x > – 4
2. – 4 < x < 0 ; x > 4
3. – 4 < x < 4
x³ – 1 > 0
1. x > 1
2. x < – 1 ; x > 1
3. – 1 < x < 1
x³ – 5x² < 0
1. x < 0 ; 0 < x < 5
2. x > 5
3. x < 5
x³ – 8 < 0
1. x < 2
2. x > 2
3. x < – 2
x³ – 3x² > 0
1. x < 0 ; 0 < x < 3
2. x > 3
3. x < 3
x³ – 9x > 0
1. x < 0 ; 0 < x < 3
2. – 3 < x < 0 ; x > 3
3. x < – 3
x³ – 9x < 0
1. x < – 3 ; 0 < x < 3
2. – 3 < x < 0 ; x > 3
3. x > – 3
x³ – 3x² + 3x – 1 > 0
1. – 1 < x < 1
2. x > 1
3. x < 1
x³ + 6x² + 12x + 8 > 0
1. x > 2
2. x > – 2
3. x < – 2