Solve for x: x² + 3x - 54 = 0
- A. x = -9 or x = 6 ✓
- B. x = -9 or x = 7
- C. x = -8 or x = 5
- D. x = 9 or x = -6
Correct answer
A. x = -9 or x = 6
Explanation
Factor the quadratic: (x - -9)(x - 6) = 0, so x = -9 or x = 6.
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