عبارات مركّبة

\[\displaystyle (\sqrt2)^4\times2^{-2}+(\sqrt2)^{-2}\times(\sqrt6)^2-3^{-3}\times(\sqrt3)^2\]

\[\displaystyle \left[(-\sqrt5)^{-2}\right]^3\left[\frac{1}{2\sqrt5}^{-2}-(3\sqrt5)^2\right]\]

\[\displaystyle \sqrt5^{-1}\left(\frac1{\sqrt5}+\sqrt5^{-3}\right)\]