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Math Help - Simplify

  1. #1
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    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
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  2. #2
    A riddle wrapped in an enigma
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    Quote Originally Posted by kapital View Post
    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}

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  3. #3
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    Hi, thanx for the link.

    <br />
\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}<br />


    The result for equation is actually one. So, is my result information wrong or did you mistake?
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  4. #4
    A riddle wrapped in an enigma
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    Quote Originally Posted by kapital View Post
    Hi, thanx for the link.

    [tex]


    The result for equation is actually one. So, is my result information wrong or did you mistake?
    [/color]
    I did see that your answer was 1, but I could not simplify my result further to achieve that answer.

    I could not find a mistake in my simplification.

    In order for the result to equal 1, the numerator and denominator would have to be the same. This is not the case, so my guess is the key is wrong.
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