document.write( "Question 661573: difference of two positive integer is 5 and their product is 204.find the integers
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Algebra.Com's Answer #411684 by ReadingBoosters(3246)![]() ![]() ![]() You can put this solution on YOUR website! x-y=5 \n" ); document.write( "xy=204 \n" ); document.write( "Substitution \n" ); document.write( "(5+y)y=204 \n" ); document.write( "5y +y^2-204=0 \n" ); document.write( "Rearrange \n" ); document.write( "y^2 + 5y - 204 = 0 \n" ); document.write( "(y+ )(y- ) mixed sign due to - 204 \n" ); document.write( "Multiples of 204 that will subtract to equal 5: 12,17 \n" ); document.write( "(y + 17 )(y - 12 ) \n" ); document.write( "y+17=0, so y = -17 NO, must be positive integer \n" ); document.write( "y-12=0, so y = 12 Yes! \n" ); document.write( "x-12=5, so x=5+12=17 \n" ); document.write( "Proof \n" ); document.write( "17-12 = 5 \n" ); document.write( "17*12 = 204 \n" ); document.write( " |