document.write( "Question 246967: The sum of two numbers is 16 and their product is 38. What are the numbers. \n" ); document.write( "

Algebra.Com's Answer #180275 by checkley77(12844) $\"\"$ $\"About$

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x+y=16 or x=16-y
\n" ); document.write( "xy=38
\n" ); document.write( "(16-y)y=38
\n" ); document.write( "16y-y^2=38
\n" ); document.write( "-y^2+16y-38=0
\n" ); document.write( "y^2-16y+38=0
\n" ); document.write( " $\"y+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( "y=(16+-sqrt[16^2-4*1*38])/2*1
\n" ); document.write( "y=(16+-sqrt[256-152])/2
\n" ); document.write( "y=(16+-sqrt104)/2
\n" ); document.write( "y=(16+-10.2)/2
\n" ); document.write( "y=(16+10.2)/2
\n" ); document.write( "y=26.2/2
\n" ); document.write( "y=13.1 ans.
\n" ); document.write( "y=(16-10.2)/2
\n" ); document.write( "y=5.8/2
\n" ); document.write( "y=2.9 ans.
\n" ); document.write( "proof:
\n" ); document.write( "13.1+2.9=16
\n" ); document.write( "16=16
\n" ); document.write( "13.1*2.9=38
\n" ); document.write( "38~38 \n" ); document.write( "

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