document.write( "Question 1145791: Use a quadratic equation to find two real numbers with a sum of 2 and a product of -24. \n" ); document.write( "
Algebra.Com's Answer #767041 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Use a quadratic equation to find two real numbers with a sum of 2 and a product of -24. \n" ); document.write( "--------------------- \n" ); document.write( "x + y = 2 \n" ); document.write( "x*y = -24 \n" ); document.write( "------- \n" ); document.write( "x + y = 2 ---> y = 2-x \n" ); document.write( "Sub for y in the 2nd eqn \n" ); document.write( "========== \n" ); document.write( "x*(2-x) = -24 \n" ); document.write( "x*(x-2) = 24 \n" ); document.write( "x^2 - 2x - 24 = 0 \n" ); document.write( "====== \n" ); document.write( "Here, find 2 factors of -24 that differ by 2 \n" ); document.write( "---> -6 & 4 : Obviously the \"answer\" -- no quadratic is needed. \n" ); document.write( "---- \n" ); document.write( "(x-6)*(x+4) = 0 \n" ); document.write( "---> 6 and -4 \n" ); document.write( " \n" ); document.write( " |