Solve for x: x² - 2x - 8 = 0
- A. x = -2 or x = 5
- B. x = -2 or x = 4 ✓
- C. x = 2 or x = -4
- D. x = -1 or x = 3
Correct answer
B. x = -2 or x = 4
Explanation
Factor the quadratic: (x - -2)(x - 4) = 0, so x = -2 or x = 4.
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