We want to write the following expression

as a single expression. To do that, first, we're going to use the following property

Applying this property in our expression, we can rewrite it as
![6\operatorname{\log}_7u+5\operatorname{\log}_7v=\operatorname{\log}_7u^6+\operatorname{\log}_7v^5]()
Then, using the following property

we can rewrite our expression as
![\operatorname{\log}_7u^6+\operatorname{\log}_7v^5=\operatorname{\log}_7u^6v^5]()