First, we rewrite the given polynomial as follows:
[tex]\left(8m^2-4m\right)+\left(10m-5\right).[/tex]Notice that:
[tex]\begin{gathered} 8m^2-4m=4m(2m-1), \\ 10m-5=5(2m-1). \end{gathered}[/tex]Factoring out (2m-1), we get:
[tex](8m^2-4m)+(10m-5)=(4m+5)(2m-1).[/tex]Answer:
[tex]8m^2+6m-5=(4m+5)(2m-1).[/tex]