document.write( "Question 430829: What are the solution set to this problem please.\r
\n" ); document.write( "\n" ); document.write( "Addition Method
\n" ); document.write( "\"x%5E2%2By%5E2=49\"
\n" ); document.write( "\"y%5E2-2x=49\"\r
\n" ); document.write( "\n" ); document.write( "Thank you!!!! \n" ); document.write( "
Algebra.Com's Answer #299122 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
\"x%5E2%2By%5E2=49\"
\n" ); document.write( "\"y%5E2-2x=49\"\r
\n" ); document.write( "\n" ); document.write( "multiply the second equation by -1
\n" ); document.write( "we get
\n" ); document.write( "-y^2+2x=-49
\n" ); document.write( "add this t the first equation
\n" ); document.write( "x^2+2x=0
\n" ); document.write( "x(x+2)=0
\n" ); document.write( "x=0 OR x=-2
\n" ); document.write( "Plug the value of x in first equation
\n" ); document.write( "For x=0 y^2=49
\n" ); document.write( "so y= +-7
\n" ); document.write( "(0,+/-7)
\n" ); document.write( ".....
\n" ); document.write( "For x=-2
\n" ); document.write( "y^2=49-4
\n" ); document.write( "y^2=45
\n" ); document.write( "y=+/-sqrt(45)
\n" ); document.write( "(-2,+/-sqrt(45))
\n" ); document.write( " \n" ); document.write( "
\n" );