document.write( "Question 385427: one positive number is 5 larger than another number. the sum of their squares is 53. find the numbers. \n" ); document.write( "
Algebra.Com's Answer #272721 by Jk22(389)![]() ![]() You can put this solution on YOUR website! Let the number be a,b, the larger a=5+b \n" ); document.write( " \n" ); document.write( "sum of square : a^2+b^2=53=25+10b+b^2+b^2 => \n" ); document.write( " \n" ); document.write( "=2b^2+10b-28=2(b^2+5b-14) |Viete's formula : sum=5, prod=-14 => -2*7) \n" ); document.write( " \n" ); document.write( "=2(b-2)(b+7) \n" ); document.write( " \n" ); document.write( "=> >The 2 numbers are (7,2), ( (-2,-7) is not solution since it should be positive) \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |