${|x|^{11/10}} \log_{|x|^{{1/10}}}|x|$.
I only know doing the first step, not sure if it is correct
$\log_{|x|^{{1/10}}}(|x|^{|x|^{11/10}})$
as got stuck following this proof. Please help understand how we can get step two from step one.

${|x|^{11/10}} \log_{|x|^{{1/10}}}|x|$.
I only know doing the first step, not sure if it is correct
$\log_{|x|^{{1/10}}}(|x|^{|x|^{11/10}})$
as got stuck following this proof. Please help understand how we can get step two from step one.

If I interpret your question correctly, $V$ means the set of vertices and $E$ means the set of edges.
We have $|E|=O(|V|^2)$.
Hence, we can drop the first term.
Also, note that $\log_ab =\frac{\log b}{\log a}$.