Find the roots of each of these quadratic equations. Use any method.
1. x² - 121 = 0
2. 2x² + 13x - 7 = 0
3. x² - 2x - 5 = 0
4. x² - 6x + 5 = 0
5. 2x² = 50
1. x² - 121 = 0
2. 2x² + 13x - 7 = 0
3. x² - 2x - 5 = 0
4. x² - 6x + 5 = 0
5. 2x² = 50
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