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Math Help - Algebra and Equations

  1. #1
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    Algebra and Equations

    4/x^2-1 - 1/x-1 We have to simplify and show working. Can anyone help??
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  2. #2
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    Re: Algebra and Equations

    Alicesayde

    Factorize the denominator x^2-1 to becom (x-1)(x+1) and multiply the second fraction by (x+1) (NUm +denom.)
    then you have two fractions with the same donominator and you can add them together....do it is easy.
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  3. #3
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    Re: Algebra and Equations

    So would the answer be 5-x/ (x+1)(x-1)?
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  4. #4
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    Re: Algebra and Equations

    No.......it will be (3-x)/(x-1)(x+1) check the signs you have -(x+1) which will become -x-1......be carefulll
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