# Limit x->infinity

• Feb 11th 2013, 04:30 AM
Petrus
Limit x->infinity
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 \$\displaystyle x^4+x^5\$ so i multi by \$\displaystyle (x^4-x^5)/(x^4-x^5)\$ after some simplifie i get \$\displaystyle (x^8-x^10)/(X^4-x^5)\$ 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
• Feb 11th 2013, 05:50 AM
Petrus
Re: Limit x->infinity
Solved thqt progress did not give me any progress!! I just factor out x^5 out of original and get answer infinity
• Feb 16th 2013, 03:48 AM
Paze
Re: Limit x->infinity
Hi Petrus.

I'm having problems understanding you. You have posted a problem but what are you looking to do with it? I have posted the answer below, but I doubt you are looking for the answer to your original problem. Please elaborate on your problem.

http://s4.postimage.org/g727frflp/Limx.png
• Feb 16th 2013, 04:22 AM
Petrus
Re: Limit x->infinity
Quote:

Originally Posted by Paze
Hi Petrus.

I'm having problems understanding you. You have posted a problem but what are you looking to do with it? I have posted the answer below, but I doubt you are looking for the answer to your original problem. Please elaborate on your problem.

http://s4.postimage.org/g727frflp/Limx.png

Hello paze!
I solved this problem just had a wiled thinking at begining:P