Section: Mathematics

19) Which of the following equations has a root in common with x² - 6x + 5 = 0?

1. x² + 1 = 0
2. x² - x - 2 = 0
3. 2x² - 2 = 0
4. x² - 2x - 3 = 0
5. x² - 10x - 5 = 0