SOLUTION: Please help - need to solve:
x/x^2-1 = 1/x+1 + 1/x^2-1
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Question 59041:  Please help - need to solve:
x/x^2-1 = 1/x+1 + 1/x^2-1 
Answer by funmath(2933)   (Show Source): You can put this solution on YOUR website!
   First factor your denominators.
  
Your LCD is (x+1)(x-1) and x cannot = -1 or +1 or your denominator will equal 0.  If you get -1 or +1 for your answer it is extraneous and can't be used.
Multiply every thing by (x+1)(x-1) and your denominators will all be eliminated.
The solution is all real numbers because this is an identity.  No matter what you put in for x (within the domain) you will get both sides of the equation are equal.  Pick some random numbers besides 1 and -1 and see for yourself.
:
There's easier ways to do this, but you would have to notice some things like if you subtract 1/(x^2-1) from both sides you get:
(x-1)/(x^2-1)=1/(x+1)
(x-1)/((x+1)(x-1))=1/(x+1)  cancel and you have:
1/(x+1)=1/(x+1)  They're identical.
Happy Calculating!!!
 
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