document.write( "Question 102444: The sum of a number and its reciprocal is 5/2. What is the number and reciprocal? \n" ); document.write( "
Algebra.Com's Answer #74441 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Let the number be \"x \n" ); document.write( "EQUATION: \n" ); document.write( "x + 1/x =5/2 \n" ); document.write( "Multiply thru by 2x to get: \n" ); document.write( "2x^2+2 = 5x \n" ); document.write( "2x^2-5x+2 = 0 \n" ); document.write( "2x^2-4x-x+2=0 \n" ); document.write( "2x(x-2)-(x-2)=0 \n" ); document.write( "(x-2)(2x-1)=0 \n" ); document.write( "x = 2 or x = 1/2 \n" ); document.write( "============= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |