document.write( "Question 806048: solve algebraically
\n" ); document.write( "x^2+y^2=17
\n" ); document.write( "x+y=5
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Algebra.Com's Answer #485631 by mananth(16946)\"\" \"About 
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x^2+y^2=17
\n" ); document.write( "x+y=5\r
\n" ); document.write( "\n" ); document.write( "x^2+y^2+2xy-2xy =17 \r
\n" ); document.write( "\n" ); document.write( "(x+y)^2-2xy =17\r
\n" ); document.write( "\n" ); document.write( "5^2-2xy=17
\n" ); document.write( "2xy=25-17
\n" ); document.write( "2xy=8
\n" ); document.write( "xy=4
\n" ); document.write( "y=4/x\r
\n" ); document.write( "\n" ); document.write( "x+(4/x)=5\r
\n" ); document.write( "\n" ); document.write( "x^2+4=5x
\n" ); document.write( "x^2-5x+4=0
\n" ); document.write( "x^2-4x-x+4=0
\n" ); document.write( "x(x-4)-1(x-4)=0
\n" ); document.write( "(x-4)(x-1)=0
\n" ); document.write( "x=4 OR 1\r
\n" ); document.write( "\n" ); document.write( "plug x to get y\r
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