2.
计算下列各题:
\((1){{(-2)}^{0}}+{{(-1)}^{2017}}-{{(\dfrac{1}{2})}^{-1}}+{{(0.125)}^{3}}\times {{8}^{3}}\)
\((2)\)\({{(-2x)}^{2}}\cdot (-3{{x}^{2}})-3{{(-2x)}^{3}}\)
\((3)(x+y-z)(x+y+z)\)
\((4)\left( -2{{x}^{2}}y+6{{x}^{3}}{{y}^{4}}-8xy+{{(2xy)}^{3}} \right)\div \left( -2xy \right)\)
\((5)\)\((2a+3b)(2a-3b)-{{(3b-a)}^{2}}\)