# Can't solve this function

• March 10th 2013, 03:57 PM
RedmanWho
Can't solve this function
Hello all. I was practicing some algebra as i am about to return to college after some time, trying other things and finding what i really want to do. I came to this problem and just cannot seem to get the right answer(Worried). Can someone please explain how to solve this?

f(x)=x2/x+2
g(x)=(5x)2/3

find f(g(x))

thank you.

• March 10th 2013, 04:27 PM
Plato
Re: Can't solve this function
Quote:

Originally Posted by RedmanWho
Hello all. I was practicing some algebra as i am about to return to college after some time, trying other things and finding what i really want to do. I came to this problem and just cannot seem to get the right answer(Worried). Can someone please explain how to solve this?
f(x)=x2/x+2
g(x)=(5x)2/3
find f(g(x))

The answer in the back-of-the-book is $\frac{225x^4}{75x^2+18}$.

Now if you want anymore help ever, then you must reply with a detailed explaining why.
• March 10th 2013, 04:34 PM
RedmanWho
Re: Can't solve this function
I don't follow. Explaining why?
• March 10th 2013, 05:10 PM
Plato
Re: Can't solve this function
Quote:

Originally Posted by RedmanWho
I don't follow. Explaining why?

Sorry to here that!
You you need real set-down help.
That is going to cost you.

We are free! But you seem unwilling to even try to help yourself.
• March 10th 2013, 05:21 PM
RedmanWho
Re: Can't solve this function
Actually. I got that problem from this website CLEP College Algebra | CollegePlus question 7
which gives the answer of 5625/77. I did not get that answer.

if i was "unwilling to even try and help myself" i would not have joined this forum to ask for help.
I did not know i would be answered by a condescending prick. If you are not willing to try to help people, then don't answer.
• March 10th 2013, 06:08 PM
Plato
Re: Can't solve this function
Quote:

Originally Posted by RedmanWho
Actually. I got that problem from this website CLEP College Algebra | CollegePlus question 7
which gives the answer of 5625/77. I did not get that answer.

if i was "unwilling to even try and help myself" i would not have joined this forum to ask for help.
I did not know i would be answered by a. If you are not willing to try to help people, then don't answer.

If you think that I am a condescending prick, then you have a real problem.
This is not a website for sexual perverts. You had best get your terms straight.

You say "which gives the answer of 5625/77. I did not get that answer" that is strange, it proves that you are either a troll or a do not care about the truth. Which is it?
• March 10th 2013, 07:11 PM
RedmanWho
Re: Can't solve this function
What? this is not the website for sexual perverts? I'm sorry, you're not an asshole, this was just a misunderstanding. my mistake.

Thank you for clearing that up. I'm truly sorry, all mighty Plato. We people who are not so good with math, who try to better educate ourselves, are not worthy of help.