SOLUTION: Simplify x^2+y^2-2^2+2xy / x^2-y^2-2^2-2xy

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Simplify x^2+y^2-2^2+2xy / x^2-y^2-2^2-2xy      Log On


   

Question 1049109: Simplify x^2+y^2-2^2+2xy / x^2-y^2-2^2-2xy
Found 3 solutions by Edwin McCravy, hussamuddin, ikleyn:
Answer by Edwin McCravy(20064) About Me  (Show Source):
You can put this solution on YOUR website!

I don't think you copied that right
because it contains 2^2.  You are way beyond
learning how to square 2 and get 4. Your 
teacher or a book author would not be wasting 
time at this stage in algebra testing you on 
whether you know how to square 2 and get 4.
They would have written 4, not 2^2.  

Besides, it does not simplify very much even 
when putting 4 where the 2^2 is.  You can tell 
me what it should have been in the thank-you 
note form below if you like.

Edwin

Answer by hussamuddin(51) About Me  (Show Source):
You can put this solution on YOUR website!
%28x%5E2%2By%5E2-2%5E2%2B2xy%29+%2F+%28x%5E2-y%5E2-2%5E2-2xy%29
cancel both x%5E2 and both -2%5E2
%28y%5E2%2B2xy%29%2F%28-y%5E2-2xy%29
now take - common in the denominator
%28+y%5E2+%2B+2xy+%29+%2F+%28-%28+y%5E2+%2B+2xy+%29%29+
-%28y%5E2%2B2xy%29%2F%28y%5E2%2B2xy%29
cancel both y%5E2 and both 2xy
-1%2F1
answer is -1

Answer by ikleyn(52879) About Me  (Show Source):
You can put this solution on YOUR website!
.
The "solution" by "hussamuddin" is wrong.

It is not a solution.