Solve for x: x² + 5x - 36 = 0
- A. x = 5 or x = -10
- B. x = 4 or x = -9 ✓
- C. x = -4 or x = 9
- D. x = 4 or x = -8
Correct answer
B. x = 4 or x = -9
Explanation
Factor the quadratic: (x - 4)(x - -9) = 0, so x = 4 or x = -9.
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