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)\"\" \"About 
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find an equation of 2 numbers that sum is 15 and product is 54.
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\n" ); document.write( "x + y = 15
\n" ); document.write( "x*y = 54
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\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( "\"15x+-+x%5E2+=+54\"
\n" ); document.write( "\"x%5E2+-+15x+%2B+54+=+0\"
\n" ); document.write( "(x-6)*(x-9) = 0
\n" ); document.write( "x = 6
\n" ); document.write( "x = 9
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