The image contains a mathematical expression that seems to be asking for the minimum value of the given function $P$, where $x$, $y$, and $z$ are real numbers greater than 2. The expression for $P$ is:

$P = \frac{x}{\sqrt{y + z - 4}} + \frac{y}{\sqrt{z + x - 4}} + \frac{z}{\sqrt{x + y - 4}}.$

To find the minimum value of this expression, we can utilize optimization techniques such as partial derivatives or symmetry considerations, given the structure of the problem.

Would you like me to explain the approach in more detail or start solving this step by step?