document.write( "Question 81220: I have x^2/ x^2-y^2 all over, x/x+y. (complex rational expression). thankyou!!!!!!! \n" ); document.write( "

Algebra.Com's Answer #58210 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
:
\n" ); document.write( " $\"x%5E2%2F%28%28x%5E2-y%5E2%29%29\"$
\n" ); document.write( "--------
\n" ); document.write( " $\"+x%2F%28%28x%2By%29%29\"$
\n" ); document.write( ":
\n" ); document.write( "Remember, when you divide factions, invert the dividing fraction & multiply:
\n" ); document.write( " $\"x%5E2%2F%28%28x%5E2-y%5E2%29%29\"$ * $\"%28%28x%2By%29%29%2Fx\"$
\n" ); document.write( ":
\n" ); document.write( "(x^2-y^2) is the difference of squares, so factor:
\n" ); document.write( " $\"x%5E2%2F%28%28x%2By%29%28x-y%29%29%29\"$ * $\"%28%28x%2By%29%29%2Fx\"$
\n" ); document.write( ":
\n" ); document.write( "cancel (x+y)'s and x and you have:
\n" ); document.write( " $\"x%2F%28x-y%29\"$ \n" ); document.write( "

\n" );