$$\sqrt{ { x }^{ 2 } -9 } = \sqrt{ x-2 }$$
$x = \frac{\sqrt{29} + 1}{2} \approx 3.192582404$
$x=\frac{1-\sqrt{29}}{2}\approx -2.192582404$
$x = \frac{\sqrt{29} + 1}{2} \approx 3.192582404$