Question
Express $(-128)$ as powers of $(-2)$.
✓
Answer
We have,-128
$\begin{array}{l}=(-2) \times(-2) \times(-2) \times(-2) \times(-2) \times(-2) \times(-2) \\ =(-2)^7\end{array}$
$\begin{array}{l}=(-2) \times(-2) \times(-2) \times(-2) \times(-2) \times(-2) \times(-2) \\ =(-2)^7\end{array}$
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