[tex]\left(-\dfrac{1}2\right)^{-3}=(-1)^{-3}\cdot\left(\dfrac{1}2\right)^{-3}=\dfrac{1}{(-1)^{3}}\dfrac{1}{\left(\dfrac{1}{2}\right)^3}=(-1)\cdot2^3=-8.[/tex]
Green eyes.
