document.write( "Question 131064: Can you help me with this problem?\r
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document.write( "The product of two consecutive integers is 360. Find the integers.\r
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document.write( "I got to (x-18)(x+20)=0, but then I got confused\r
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document.write( "Thanks! \n" );
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Algebra.Com's Answer #95700 by stanbon(75887) ![]() You can put this solution on YOUR website! The product of two consecutive integers is 360. Find the integers. \n" ); document.write( "-------------------- \n" ); document.write( "I think you need consecutive EVEN integers. \n" ); document.write( "--------------------- \n" ); document.write( "1st: 2x \n" ); document.write( "2nd: 2x+2 \n" ); document.write( "------------ \n" ); document.write( "EQUATION: \n" ); document.write( "2x*(2x+2) = 360 \n" ); document.write( "4x^2+4x-360 = 0 \n" ); document.write( "x^2 + x -90 = 0 \n" ); document.write( "x = [-1 +- sqrt(1-4*-90)]/2 \n" ); document.write( "x = [-1 +- sqrt(361)]/2 \n" ); document.write( "x = [-1 +- 19]/2 \n" ); document.write( "x = [18/2] or [-20/2] \n" ); document.write( "x = 9 or -10 \n" ); document.write( "--------------- \n" ); document.write( "2x = 18 and 2x+2 = 20 \n" ); document.write( "OR \n" ); document.write( "2x -20 and 2x+2 = -18 \n" ); document.write( "========================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |