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

2. Solve the equation. 2x² + 7x + 4 = 0
x = -0.72 and x = -2.78
x = 2.78 and x = 0.72
x = 0.5 and x = -4
x = -1.44 and x = -5.56

3. Solve the equation. 5x² + 10x + 2 = 0
x = 1.77 and x = 0.23
x = 0.18 and x = -2.18
x = -0.23 and x = -1.77
No real solutions

4. Solve the equation. 3x² + 9x + 4 = 0
x = 2.46 and x = 0.54
x = 0.39 and x = -3.39
x = -0.54 and x = -2.46
x = -1.09 and x = -4.91

5. Solve the equation. 2x² + 9x + 3 = 0
x = -0.73 and x = -8.27
x = 4.14 and x = 0.36
x = -0.36 and x = -4.14
x = 0.31 and x = -4.81

6. Solve the equation. 2x² + 7x + 3 = 0
x = 3 and x = 0.5
x = 0.39 and x = -3.89
x = -0.5 and x = -3
x = -1 and x = -6

7. Solve the equation. 3x² + 8x + 5 = 0
x = -1 and x = -1.67
x = 1.67 and x = 1
x = 0.52 and x = -3.19
No real solutions

8. Solve the equation. x² + 7x + 2 = 0
No real solutions
x = 6.7 and x = 0.3
x = 0.27 and x = -7.27
x = -0.3 and x = -6.7

9. Solve the equation. 3x² + 6x + 2 = 0
x = 1.58 and x = 0.42
x = 0.29 and x = -2.29
x = -0.42 and x = -1.58
x = -0.85 and x = -3.15

10. Solve the equation. 5x² + 10x + 3 = 0
x = 1.63 and x = 0.37
x = 0.26 and x = -2.26
x = -0.37 and x = -1.63
No real solutions

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Correct answers: