document.write( "Question 23428: (x/x+y)+(x/x-y) \n" ); document.write( "
Algebra.Com's Answer #12216 by rapaljer(4671)\"\" \"About 
You can put this solution on YOUR website!
\"x%2F%28x%2By%29%2Bx%2F%28x-y%29\"\r
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\n" ); document.write( "\n" ); document.write( "Because this is an addition problem, it calls for a common denominator, which is (x+y)(x-y).\r
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\n" ); document.write( "\n" ); document.write( "Now, multiply the first fraction by \"+%28x-y%29%2F%28x-y%29+\" and the second fraction by \"+%28x%2By%29%2F%28x%2By%29+\" \r
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\n" ); document.write( "\n" ); document.write( "It should look like this:\r
\n" ); document.write( "\n" ); document.write( "\"%28x%2F%28x%2By%29%29%2A+%28%28x-y%29%2F%28x-y%29%29\" + \"+%28x%2F%28x-y%29%29%2A%28%28x%2By%29%2F%28x%2By%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2-xy+%2B+x%5E2+%2Bxy%29+%2F+%28%28x%2By%29%2A%28x-y%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"%282x%5E2+%29%2F+%28%28x%2By%29%2A%28x-y%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "R^2 at SCC
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