document.write( "Question 107260: Please help! \r
\n" ); document.write( "\n" ); document.write( "I am supposed to add or subtract as indicated and express the results in simplest form.\r
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\n" ); document.write( "\n" ); document.write( "(X^2)/(x- 3)- (9)/(x- 3)
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Algebra.Com's Answer #78056 by Annabelle1(69)\"\" \"About 
You can put this solution on YOUR website!
\"x%5E2%2F%28x-3%29-9%2F%28x-3%29\"
\n" ); document.write( "here we already have a common denominator so we can add these fractions. \r
\n" ); document.write( "\n" ); document.write( "This becomes
\n" ); document.write( "\"%28x%5E2-9%29%2F%28x-3%29\"
\n" ); document.write( "\"x%5E2-9\" is a difference of 2 squares so it factorises to (x-3)(x+3)\r
\n" ); document.write( "\n" ); document.write( "we now have
\n" ); document.write( "\"%28%28x-3%29%28x%2B3%29%29%2F%28x-3%29\"
\n" ); document.write( "the x-3 cancels and we are left with
\n" ); document.write( "x+3
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