Let $x, y, z$ be real numbers so that
\begin{align*} y+z & = 13, \\ z+x & = 14, \\ x+y & = 15. \end{align*}
Find $\sqrt{xyz(x+y+z)}$.
Hey bestie it's me
I got 84 because I found that x=8, y=7, and z=6.
+501 
