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# Rational expression help watch

1. Hi!im finding a hard time doing this question
simplfiy

2/(x-1)+1/(x+1)=5/4
2. (Original post by qatarownz)
Hi!im finding a hard time doing this question
simplfiy

2/(x-1)+1/(x+1)=5/4
Use the fact that and proceed with the left side.
3. If in doubt, multiply both sides by the product of the denominators... in this case, (x-1)(x+1)(4), then you usually end up with a quadratic equation to solve.

Sometimes you might see faster ways, but this one should be foolproof. And *hint* always keep you eyes peeled for the difference of two squares... how do you factorise x^2 - 1?

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