Найдите сумму многочленов: \( \left(100stu^{\,2}+18s^{\,3}t+20s^{\,4}+91tu^{\,4}\right)+\left(21stu^{\,2}+10s^{\,3}t+9ut^{\,5}+13s^{\,4}\right)=\) \( =\)\( stu^{\,2}\,+\)\( s^{\,3}t+\)\( s^{\,4}+91tu^{\,4}+9ut^{\,5}\)

Задание

Найдите сумму многочленов:

\(\displaystyle \left(100stu^{\,2}+18s^{\,3}t+20s^{\,4}+91tu^{\,4}\right)+\left(21stu^{\,2}+10s^{\,3}t+9ut^{\,5}+13s^{\,4}\right)=\)

\(\displaystyle =\)[ ]\(\displaystyle stu^{\,2}\,+\)[ ]\(\displaystyle s^{\,3}t+\)[ ]\(\displaystyle s^{\,4}+91tu^{\,4}+9ut^{\,5}\)