Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).
AlgebraExponents and Powers
If $a + b = -2$, then $(a + b)^3 =$
- A.$-6$
- B.$8$
- C.$-8$Correct answer
- D.$6$
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Practice these MCQs in the appQuick fact: Since $a+b = -2$, cubing both sides gives $(a+b)^3 = (-2)^3 =$ $-8$.