Question

divide this equation all the numbers confused me

Answer 1

\[\frac{ 5^2-5s }{ 5^2-11s+30 } divide \frac{ s+5 }{ s-6 }\]

Answer 2

Well, to start with,
\[\frac{a}{b}\div\frac{c}{d}=\frac{a}{b}\times\frac{d}{c}\]

Answer 3

With that in mind, your original expression can be written as
\[\left( \frac{5s^{2}-5s}{5s^{2}-11s+30} \right)\left( \frac{s-6}{s+5} \right)\]