Найдите разность многочленов:
\(\displaystyle \left(40s^{\,3}t-32stu-20t^{\,3}+15st^{\,2}\right)-\left(44s^{\,3}t-19stu+15t^{\,3}-3st^{\,2}\right)=\)
\(\displaystyle =\)[?||-][ ]\(\displaystyle s^{\,3}t\)[?|+|-][ ]\(\displaystyle stu\)[?|+|-][ ]\(\displaystyle t^{\,3}\)[?|+|-][ ]\(\displaystyle st^{\,2}\)