\[\boxed{\mathbf{116}\mathbf{.}}\]
\[= \left( \frac{3a^{2} - 3}{a - a^{- 1}} \right)^{2} =\]
\[= \left( \frac{3a \bullet \left( a - 3a^{- 1} \right)}{a - a^{- 1}} \right)^{2} = (3a)^{2} =\]
\[= 9a^{2}\]
\[= \left( (a + b)^{2} - \frac{a^{3} + b^{3}}{a - b} \right) \bullet \frac{1}{\text{ab}} =\]
\[= \frac{a^{2}b - ab^{1}}{a^{2}b - ab^{2}} = 1\]