1.
Let S={x:xR and (3+2)x24+(32)x24=10}S = \left\{ x : x \in \mathbb{R} \text{ and } (\sqrt{3} + \sqrt{2})^{x^2 - 4} + (\sqrt{3} - \sqrt{2})^{x^2 - 4} = 10 \right\}. Then n(S)n(S) is equal to