Solving Quadratic Equations, Quiz 8, Level 2

Solving Quadratic Equations, Quiz 8, 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. 3x2 + 7x + 1 = 0
x = 2.18 and x = 0.15
x = 0.14 and x = -2.47
x = -0.15 and x = -2.18
x = -0.31 and x = -4.36

2. Solve the equation. 3x2 + 10x + 1 = 0
x = 3.23 and x = 0.1
x = -0.1 and x = -3.23
x = 0.1 and x = -3.43
x = -0.21 and x = -6.46

3. Solve the equation. 2x2 + 13x + 3 = 0
x = -0.24 and x = -6.26
x = 6.26 and x = 0.24
x = 0.22 and x = -6.72
x = -0.48 and x = -12.52

4. Solve the equation. x2 + 9x + 4 = 0
x = 8.53 and x = 0.47
x = 0.42 and x = -9.42
No real solutions
x = -0.47 and x = -8.53

5. Solve the equation. 5x2 + 11x + 1 = 0
x = -0.19 and x = -4.21
x = -0.1 and x = -2.1
x = 2.1 and x = 0.1
x = 0.09 and x = -2.29

6. Solve the equation. 5x2 + 14x + 1 = 0
x = 2.73 and x = 0.07
x = 0.07 and x = -2.87
x = -0.15 and x = -5.45
x = -0.07 and x = -2.73

7. Solve the equation. 2x2 + 6x + 4 = 0
x = 2 and x = 1
x = 0.56 and x = -3.56
x = -2 and x = -4
x = -1 and x = -2

8. Solve the equation. 3x2 + 12x + 3 = 0
x = -0.54 and x = -7.46
x = -0.27 and x = -3.73
x = 3.73 and x = 0.27
x = 0.24 and x = -4.24

9. Solve the equation. 3x2 + 7x + 2 = 0
x = -0.33 and x = -2
x = 2 and x = 0.33
x = 0.26 and x = -2.59
x = -0.67 and x = -4

10. Solve the equation. 2x2 + 16x + 4 = 0
x = 7.74 and x = 0.26
x = 0.24 and x = -8.24
x = -0.52 and x = -15.48
x = -0.26 and x = -7.74

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Correct answers: