\( - {\left( {{x^7}{y^5}z} \right)^2}:{\left( { - x{y^3}z} \right)^2}\)
\( =- {\left( {{x^7}{y^5}z} \right)^2}:{\left( { x{y^3}z} \right)^2}\)
\( = - {\left( {{x^7}{y^5}z:x{y^3}z} \right)^2}\)\(= - {\left( {{x^6}{y^2}} \right)^2} = - {x^{12}}{y^4}\)
Thay \(x = 1;y = - 10;z = 101\):
\( - {\left( 1 \right)^{12}}.{\left( { - 10} \right)^4} = - 1.10000 \)\(= - 10000\)
