document.write( "Question 312111: The sum of the squares of two consecutive positive numbers is 61.
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document.write( "what is the smaller number? \n" );
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Algebra.Com's Answer #223154 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! The sum of the squares of two consecutive positive numbers is 61. \n" ); document.write( "what is the smaller number? \n" ); document.write( ". \n" ); document.write( "Let x = smaller number \n" ); document.write( "then \n" ); document.write( "x+1 = larger consecutive number \n" ); document.write( ". \n" ); document.write( "x^2 + (x+1)^2 = 61 \n" ); document.write( "x^2 + (x+1)(x+1) = 61 \n" ); document.write( "x^2 + (x^2+2x+1) = 61 \n" ); document.write( "2x^2+2x+1 = 61 \n" ); document.write( "2x^2+2x-60 = 0 \n" ); document.write( "x^2+x-30 = 0 \n" ); document.write( "(x+6)(x-5) = 0 \n" ); document.write( "x = {-6, 5} \n" ); document.write( "Toss out the negative solution leaving: \n" ); document.write( "x = 5 \n" ); document.write( " |