# Math Help - Simplify

1. ## Simplify

How can I simplify this:

http://www.e-um.si/lessons/363/Glava.pdf

ex. 2, example a

p.s. How can I draw mathematical formulas here?

thanx

2. Originally Posted by kapital
How can I simplify this:

http://www.e-um.si/lessons/363/Glava.pdf

ex. 2, example a

p.s. How can I draw mathematical formulas here?

thanx
Hi kapital,

$\frac{x^{2n-2}-1}{x^{2n}-x^{n+1}+x^{n-1}-1}=\frac{(x^{n-1}+1)(x^{n-1}-1)}{(x^{n+1}+1)(x^{n-1}-1)}=\frac{x^{n-1}+1}{x^{n+1}+1}$

To create mathematical symbols, go here for a tutorial on LaTex.

3. Hi, thanx for the link.

$
\frac{x^{2n-2}-1}{x^{2n}-x^{n+1}+x^{n-1}-1}=\frac{(x^{n-1}+1)(x^{n-1}-1)}{(x^{n+1}+1)(x^{n-1}-1)}=\frac{x^{n-1}+1}{x^{n+1}+1}
$

The result for equation is actually one. So, is my result information wrong or did you mistake?

4. Originally Posted by kapital