What's the logic behind that?

Logic Level 3

\[\begin{eqnarray}7\forall 6&=&7\\ 4\forall 2&=&12\\ 6\forall 3&=&120\\ 8\forall 6&=&?\end{eqnarray}\]

Define a binary operation \(\forall\) such that the conditions above are fulfilled. Find function of this binary operation. And evaluate \(? +8^2\).