2x² + 7x +3

• X₁= 1/2 X₂ = 3

• X₁= 1 X₂ = 4

• X₁= 2/6 X₂ = 8

• X₁= 1/2 X₂ = 1/4

3x² +8x +5

• X_¹= 3 X₂ = 1

• X₁= 2/5 X₂ = 3/2

• X₁= 2/4 X₂ = 3

• X₁= 5/3 X₂ = 1

15x² - 22x + 8 da X₁= 4/5 X₂ = 2/3

• Cierto

• Falso

4x² + 8xy + 3y² da X₁= -y/3 X₂ = -3y/2

• Cierto

• Falso

a² + 3a + 2 = 0

• a = 1 /3 a = -2

• a = -3 a = -2

• a = -1 a = -1/2

• a = -7 a = 3/5

4a² + 12a + 5 = 0 da a =-2/2 a= -1/5

• Cierto

• Falso

a² - 5a + 6 = 0 da a = -1 a = -2/3

• Cierto

• Falso

6a² - 19a + 15 = 0

• a = 4/6 a = 2/5

• a = -2/3 a = -5/3

• a = -2/3 a = 3/5

• a = 2/5 a = -1/8

a² - a -12 = 0

• a = 5/2 a = 6/8

• a = -3 a = 2/5

• a = -1 a = -4/3

• a = 6 a = -3/6

5a² - a - 6 = 0 da a = -1/5 a = -2/5

• Cierto

• Falso