\[\boxed{\text{224\ (224).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[1)\ (*)^{4} = c^{20}\ \]
\[{\ \left( c^{5} \right)}^{4} = c^{20}\]
\[2)\ (*)^{2} = c^{14}\text{\ \ \ \ \ \ \ \ }\]
\[\left( c^{7} \right)^{2} = c^{14}\]
\[3)\ (*)^{n} = c^{8n}\text{\ \ \ \ \ \ \ \ }\]
\[\left( c^{8} \right)^{n} = c^{8n}\]
\[4)\ (*)^{7} = c^{7n}\text{\ \ \ \ \ \ \ \ \ }\]
\[\left( c^{n} \right)^{7} = c^{7n}\]