Найдите суммы одночленов: \( 72x^{\,21}+102x^{\,21}=\) \( x^{\,21}\) \( 64y^{\,28}+ (-13)y^{\,28}=\) \( y^{\,28}\) \( (-124)z^{\,30}+ 75z^{\,30}=\) \( z^{\,30}\) \( (-5)u^{\,41}+ (-11)u^{\,41}=\) \( u^{\,41}\)

Задание

Найдите суммы одночленов:

\(\displaystyle 72x^{\,21}+102x^{\,21}=\)	[ ]\(\displaystyle x^{\,21}\)
\(\displaystyle 64y^{\,28}+ (-13)y^{\,28}=\)	[ ]\(\displaystyle y^{\,28}\)
\(\displaystyle (-124)z^{\,30}+ 75z^{\,30}=\)	[ ]\(\displaystyle z^{\,30}\)
\(\displaystyle (-5)u^{\,41}+ (-11)u^{\,41}=\)	[ ]\(\displaystyle u^{\,41}\)