document.write( "Question 667831: x+y=5 and xy=4 find x-y? \n" ); document.write( "

Algebra.Com's Answer #415208 by Alan3354(69443) $\"\"$ $\"About$

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x+y=5 and xy=4 find x-y?
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\n" ); document.write( "x*(5-x) = 4
\n" ); document.write( " $\"x%5E2+-+5x+%2B+4+=+0\"$
\n" ); document.write( "x = 1, y = 4 --> x-y = -3
\n" ); document.write( "x = 4, y = 1 --> x-y = 3
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