Solve for x: x² - 2x - 3 = 0
- A. x = -1 or x = 3 ✓
- B. x = 0 or x = 2
- C. x = 1 or x = -3
- D. x = -1 or x = 4
Correct answer
A. x = -1 or x = 3
Explanation
Factor the quadratic: (x - -1)(x - 3) = 0, so x = -1 or x = 3.
A. x = -1 or x = 3
Factor the quadratic: (x - -1)(x - 3) = 0, so x = -1 or x = 3.