So this is a diffrent that i got no clue what to do next because i it got highest Power on top not dominator (on bottom on divide)

limit x->infinity so i multi by after some simplifie i get and now i shall divide both with x^5 and at bottom i get -1 and at top im kinda confused

edit:it is suposed to be x^(10) im having truble to get that 0 to top for some reason its not x^(1)•0