1. Solve the equation. 2x² + 14x + 2 = 0
x = -0.15 and x = -6.85
x = 6.85 and x = 0.15
x = 0.14 and x = -7.14
x = -0.29 and x = -13.71

2. Solve the equation. 5x² + 20x + 4 = 0
x = 3.79 and x = 0.21
x = 0.19 and x = -4.19
x = -0.42 and x = -7.58
x = -0.21 and x = -3.79

3. Solve the equation. 3x² + 9x + 3 = 0
x = 2.62 and x = 0.38
x = 0.3 and x = -3.3
x = -0.38 and x = -2.62
x = -0.76 and x = -5.24

4. Solve the equation. 2x² + 20x + 3 = 0
x = 9.85 and x = 0.15
x = 0.15 and x = -10.15
x = -0.15 and x = -9.85
x = -0.3 and x = -19.7

5. Solve the equation. 2x² + 10x + 3 = 0
x = -0.64 and x = -9.36
x = 4.68 and x = 0.32
x = -0.32 and x = -4.68
x = 0.28 and x = -5.28

6. Solve the equation. 5x² + 10x + 4 = 0
x = 1.45 and x = 0.55
x = 0.34 and x = -2.34
x = -0.55 and x = -1.45
x = -1.11 and x = -2.89

7. Solve the equation. x² + 19x + 3 = 0
x = -0.16 and x = -18.84
x = 18.84 and x = 0.16
x = 0.16 and x = -19.16
x = -0.32 and x = -37.68

8. Solve the equation. 4x² + 12x + 1 = 0
x = -0.17 and x = -5.83
x = 2.91 and x = 0.09
x = 0.08 and x = -3.08
x = -0.09 and x = -2.91

9. Solve the equation. 2x² + 10x + 1 = 0
x = 4.9 and x = 0.1
x = 0.1 and x = -5.1
x = -0.1 and x = -4.9
x = -0.2 and x = -9.8

10. Solve the equation. x² + 20x + 1 = 0
x = 19.95 and x = 0.05
x = 0.05 and x = -20.05
x = -0.05 and x = -19.95
x = -0.1 and x = -39.9

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Correct answers: