Найдите разность многочленов:
\(\displaystyle \left(15st^{\,3}u+14t^{\,5}-stu^{\,3}-9su\,\right)-\left(4st^{\,3}u-9t^{\,5}+13stu^{\,3}-4su\,\right)=\)
\(\displaystyle =\)[?||-][ ]\(\displaystyle st^{\,3}u\)[?|+|-][ ]\(\displaystyle t^{\,5}\)[?|+|-][ ]\(\displaystyle stu^{\,3}\)[?|+|-][ ]\(\displaystyle su\)