document.write( "Question 196763: Subtract and Simplify:\r
\n" ); document.write( "\n" ); document.write( "(x+3y/x-3y) - (x-3y/x+3y)
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Algebra.Com's Answer #147473 by RAY100(1637)\"\" \"About 
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(x+3y)/(x-3y) - (x-3y) /(x+3y)
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\n" ); document.write( "{(x+3y)^2 - (x-3y)^2} / { x-3y)(x+3y) }
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\n" ); document.write( "{ {x^2 +6xy +9y^2} - {x^2 -6xy +9y^2} ] / { (x-3y)(x+3y) }
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\n" ); document.write( "12xy / { (x-3y)(x+3y) }
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\n" ); document.write( "12xy / (x^2 -9y^2)
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