§ Задание 301
\[\boxed{\mathbf{3.}\mathbf{301}}\]

\[\textbf{а)}\ (y + 2)^{3}\]
\[\textbf{б)}\ (6 - n)^{2}\]
\[\textbf{в)}\ x^{3} + 7^{3}\]
\[\textbf{г)}\ p^{2} - q^{2}\ \]
\[\boxed{\mathbf{3.}\mathbf{301}}\]

\[\textbf{а)}\ (y + 2)^{3}\]
\[\textbf{б)}\ (6 - n)^{2}\]
\[\textbf{в)}\ x^{3} + 7^{3}\]
\[\textbf{г)}\ p^{2} - q^{2}\ \]