document.write( "Question 982120: If the sum of a rational number and its reciprocal is 13/6,then the number is? \n" ); document.write( "
Algebra.Com's Answer #602975 by ikleyn(52866)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "Let  x  be our rational number. \r
\n" ); document.write( "\n" ); document.write( "Then its reciprocal is  \"1%2Fx\",  and the equation is \r
\n" ); document.write( "\n" ); document.write( "\"x\" + \"1%2Fx\" = \"13%2F6\".\r
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\n" ); document.write( "\n" ); document.write( "Multiply both sides by  \"6x\".  You will get a quadratic equation \r
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\n" ); document.write( "\n" ); document.write( "\"6x%5E2\" + \"6\" = \"13x\",  or\r
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\n" ); document.write( "\n" ); document.write( "\"6x%5E2\" - \"13x\" + \"6\" = \"0\".\r
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\n" ); document.write( "\n" ); document.write( "Solve it using the quadratic formula.  You will get the roots\r
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\n" ); document.write( "\n" ); document.write( "\"x%5B1%5D\" = \"3%2F2\"  and  \"x%5B2%5D\" = \"2%2F3\".\r
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\n" ); document.write( "\n" ); document.write( "Check:   \"3%2F2\" + \"2%2F3\" = \"%289%2B4%29%2F6\" = \"13%2F6\".\r
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\n" ); document.write( "\n" ); document.write( "Answer.  \"x%5B1%5D\" = \"3%2F2\" and \"x%5B2%5D\" = \"2%2F3\".\r
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