\POWER{-1.256}{-5}{\sola}
\POWER{-1.256}{5}{\solb}
\POWER{-1.256}{0}{\solc}
\[
\begin{aligned}
(-1.256)^{-5}&=\sola
\\
(-1.256)^{5}&=\solb
\\
(-1.256)^{0}&=\solc
\end{aligned}
\]