Respuesta :

pandaeyes1021

Answer:

[tex]5m^6 - 10m^5 - 5m^4[/tex]

Step-by-step explanation:

All you need to do is distribute the [tex]5m^4[/tex] to ([tex]m^2-2m - 1[/tex]), like so:

([tex]m^2-2m - 1[/tex])[tex](5m^4)[/tex]

[tex]5m^6 - 10m^5 - 5m^4[/tex]