1. ## Algebra and Equations

4/x^2-1 - 1/x-1 We have to simplify and show working. Can anyone help??

2. ## 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.

3. ## Re: Algebra and Equations

So would the answer be 5-x/ (x+1)(x-1)?

4. ## 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