Найдите сумму многочленов:
\(\displaystyle \left(13y^{\,3}+7y^{\,2}+21y+71\right)+\left(45y^{\,3}+14y^{\,2}+20y+67\right)=\)
\(\displaystyle =\)[ ]\(\displaystyle y^{\,3}+\)[ ]\(\displaystyle y^{\,2}+\)[ ]\(\displaystyle y\,+\)[ ]