Solve for x: x² - 9x + 18 = 0
- A. x = 3 or x = 6 ✓
- B. x = 3 or x = 7
- C. x = -3 or x = -6
- D. x = 4 or x = 5
Correct answer
A. x = 3 or x = 6
Explanation
Factor the quadratic: (x - 3)(x - 6) = 0, so x = 3 or x = 6.
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