document.write( "Question 255423: I am in 7th grade pre-algebra. I am trying to find an equation of 2 numbers that sum is 15 and product is 54. I know the 2 numbers are 6 and 9, but can't figure out the equation! \n" ); document.write( "
Algebra.Com's Answer #187670 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! find an equation of 2 numbers that sum is 15 and product is 54. \n" ); document.write( "------------ \n" ); document.write( "x + y = 15 \n" ); document.write( "x*y = 54 \n" ); document.write( "--------- \n" ); document.write( "y = 15-x \n" ); document.write( "Sub for y in 2nd eqn \n" ); document.write( "x*(15-x) = 54 \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "(x-6)*(x-9) = 0 \n" ); document.write( "x = 6 \n" ); document.write( "x = 9 \n" ); document.write( " \n" ); document.write( " |