Solve for the roots of the following quadratic equation using the quadratic formula.

1. x² + 7x + 10 = 0

2. x² - 5x - 24 = 0

3. x² - 4x + 3 = 0

4. 2x² - 3x - 4

5. 2x² - 3x - 34 = 0
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