Civil Service Exam Reviewer · Basic Operations · hard

Evaluate: (−2)³ − (−3)² + 9

  1. 8
  2. -8
  3. 10
  4. -26

Answer

B. -8

Solution

(−2)³ = −8 (odd power keeps the sign); (−3)² = 9. −8 − 9 + 9 = -8.

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