document.write( "Question 526669: For the following pair, find the LCD. then write each fraction as a pair of fractions with the LCD as their denominator.\r
\n" ); document.write( "\n" ); document.write( "x/x+7 and x/x-7\r
\n" ); document.write( "\n" ); document.write( "I determined the LCD as (x+7)(x-7)\r
\n" ); document.write( "\n" ); document.write( "i then multiplied the 1st fraction by (x-7) and arrived at x(x-7)/(x=7)(x-7)\r
\n" ); document.write( "\n" ); document.write( "I multiplied the second fraction by (x+7) and arrived with x(x+7)/(x-7)(x+7) \r
\n" ); document.write( "\n" ); document.write( "but the text book states that the answer is :
\n" ); document.write( "(x+7)(x-7) ; x^2 - 5x / (x+7)(x-5) , x^2 + 7x / (x+7)(x-5)\r
\n" ); document.write( "\n" ); document.write( "I can't figure out where the \"5\" came from ??
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Algebra.Com's Answer #348623 by oberobic(2304)\"\" \"About 
You can put this solution on YOUR website!

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\n" ); document.write( "I'd say your book has a typographical error in it.
\n" ); document.write( "Look for a page or handout that is entitled \"Errata\".
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