Задание

Найдите разность многочленов:

\( \left(13s^{\,3}tu+17s^{\,4}t^{\,2}+9su^{\,3}+30s^{\,2}t^{\,3}u^{\,4}\right)-\left(7s^{\,5}t^{\,8}+8s^{\,3}tu+15s^{\,4}t^{\,2}+5su^{\,3}\right)=\)

\( =\)\( s^{\,3}tu+\)\( s^{\,4}t^{\,2}+\)\( su^{\,3}+30s^{\,2}t^{\,3}u^{\,4}-7s^{\,5}t^{\,8}\)