SOLUTION: combine and simplify a^2/x-1

SOLUTION: combine and simplify a^2/x-1 - a^2/x+1 Thank you

Question 20898: combine and simplify
a^2/x-1 - a^2/x+1
Thank you
Found 2 solutions by rapaljer, philberg99:
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
There are actually two ways to interpret this problem, and I noticed that in my first attempt, I missed it both ways!! It is my privilege in algebra.com to be able to correct my errors!! I should be so fortunate in the rest of my life!!!

First interpretation: . This was the way I was interepreting it when I first saw this problem, and I missed it. Interpreted this way, EVERYTHING subtracts out, and the answer would be 0.

However, now that I look at it again, I think the question was meant to be , which would require a common denominator of . You can make this problem slightly EASIER by factoring out a common factor of before doing the LCD.

NOW, do the LCD:

Does that look better than what I originally posted? Sorry about that!!

R^2 at SCC
Answer by philberg99(10) (Show Source): You can put this solution on YOUR website!
NO! NO! NO!
You need a common denominator.
-
-
-
Now we can subtract the numerators because the denominators are the same. This gives us

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