s-the-equality-2n-2n-true-select-the-best-answer-and-justify-by-parity-reasoning

Question

For which integers n is the equality $$(-2)^{n}$$ = $$-2^{n}$$ true? Select the best answer and justify by parity reasoning.

Accepted Answer

For all odd integers n, because an odd exponent leaves the negative sign unpaired so $$(-2)^{n}$$ equals $$-2^{n}.$$

Answer

For all integers n, because parentheses do not affect the sign.

Answer

For no integers n, because $$-2^{n}$$ and $$(-2)^{n}$$ are never equal.

Answer

For all even integers n, because even exponents always produce negative results for negative bases.

For which integers n is the equality (-2)n = -2n true? Select the best answer and justify by parity reasoning.