Quadratic Equations and Inequalities Quiz

Solve the quadratic equation: 2x^2 + 5x - 3 = 0 using the quadratic formula. What is one of the solutions?

• x = 1

  x=3

• x = -3

  x= 0.5

• x = -0.5

  x=3

• x = -1.5

  x=4

Solve by factoring: x^2 - 4x - 12 = 0

• x = 6 or x = -2

• x = 4 or x = -3

• x = 3 or x = -4

• x = 2 or x = -6

Solve using the square root method: (x - 3)^2 = 25

• x = 8 or x = -2

• x = 3 or x = -3

• x = 5 or x = 1

• x = 10 or x = -4

Solve the inequality: x^2 - 4x + 3 ≤ 0

• (-∞, 1] ∪ [3, ∞)

• [1, 3]

• (-∞, -1] ∪ [4, ∞)

• [0, 3]

Solve the inequality: x^2 - 5x + 6 > 0

• (-∞, 2) ∪ (3, ∞)

• (2, 3)

• (-∞, -2) ∪ (5, ∞)

Multiply and simplify: (2 + 5i)(3 - 7i)

• 29 + i

• 41 + i

• 35 + 10i

• 6 - 35i

Simplify the expression:
(3+2i) + (4−5i)(3 + 2i) + (4 - 5i)(3+2i) + (4−5i)

• 7 - 3i

• 1 + 3i

• -1 - 7i

• 6 - i

Simplify the expression:
(5+6i) − (2−3i)(5 + 6i) - (2 - 3i)(5+6i) − (2−3i)

• 7+3i

• 3 + 9i

• 3+6i

• 7+9i

• 4,1/8
• 3, -1/5
• 5,2
• 3,0

Solve by the Quadratic Formula:

 $9u^2-11u+7=0$  

•  $\frac{-11\pm\sqrt{131}}{18}$  

•  $\frac{11\pm\sqrt{131}}{18}$  

•  $\frac{11\pm\sqrt{131}}{-18}$  

•  $\frac{11\pm i\sqrt{373}}{18}$