\[8,5x^{2}y^{2}z\ \text{\ \ \ \ \ \ }\]
\[x = 11,5;\ y = 12,4;\ z = - 8:\]
\[8,5 \cdot {11,5}^{2} \cdot {12,4}^{2} \cdot ( - 8) =\]
\[= - 1382763,68.\]