Solving Quadratic Equations, Quiz 4, Level 2

Solving Quadratic Equations, Quiz 4, Level 2

Click on the correct answer choice. (Where appropriate, answers are to the nearest hundredth.) When you have completed the quiz, press the "Get Score" button.

1. Solve the equation. 4x2 + 15x + 5 = 0
x = 3.38 and x = 0.37
x = 0.31 and x = -4.06
x = -0.74 and x = -6.76
x = -0.37 and x = -3.38

2. Solve the equation. 4x2 + 9x + 2 = 0
x = 2 and x = 0.25
x = -0.25 and x = -2
x = 0.2 and x = -2.45
x = -0.5 and x = -4

3. Solve the equation. 4x2 + 16x + 5 = 0
x = 3.66 and x = 0.34
x = -0.34 and x = -3.66
x = 0.29 and x = -4.29
x = -0.68 and x = -7.32

4. Solve the equation. 4x2 + 8x + 4 = 0
x = 1
x = 0.41 and x = -2.41
x = -2 and x = 2
x = -1

5. Solve the equation. 3x2 + 18x + 4 = 0
x = -0.46 and x = -11.54
x = -0.23 and x = -5.77
x = 5.77 and x = 0.23
x = 0.21 and x = -6.21

6. Solve the equation. 5x2 + 7x + 5 = 0
x = -0.52 and x = -1.92
x = 0.52 and x = -1.92
x = 0.52 and x = 1.92
No real solutions

7. Solve the equation. 3x2 + 17x + 2 = 0
x = 5.55 and x = 0.12
x = -0.12 and x = -5.55
x = 0.12 and x = -5.78
x = -0.24 and x = -11.09

8. Solve the equation. 2x2 + 19x + 5 = 0
x = -0.54 and x = -18.46
x = -0.27 and x = -9.23
x = 9.23 and x = 0.27
x = 0.26 and x = -9.76

9. Solve the equation. 3x2 + 7x + 1 = 0
x = -0.15 and x = -2.18
x = 2.18 and x = 0.15
x = 0.14 and x = -2.47
x = -0.31 and x = -4.36

10. Solve the equation. 3x2 + 13x + 3 = 0
x = 4.09 and x = 0.24
x = 0.22 and x = -4.55
x = -0.49 and x = -8.18
x = -0.24 and x = -4.09

Score =
Correct answers: