document.write( "Question 430825: 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 #299125 by sudhanshu_kmr(1152) $\"\"$ $\"About$

You can put this solution on YOUR website!

\n" ); document.write( "x^2 + y^2 =49\r
\n" ); document.write( "\n" ); document.write( "y^2 -2x = 49\r
\n" ); document.write( "\n" ); document.write( "or, we can write -y^2 + 2x = -49\r
\n" ); document.write( "\n" ); document.write( "now, add this equation to first equation,\r
\n" ); document.write( "\n" ); document.write( "x^2 + 2x = 0\r
\n" ); document.write( "\n" ); document.write( "=> x(x+2) = 0\r
\n" ); document.write( "\n" ); document.write( "so, x= 0 or x= -2\r
\n" ); document.write( "\n" ); document.write( "when x=0, then y = -7 or 7\r
\n" ); document.write( "\n" ); document.write( "when x= -2, then y = -sqrt(45) or sqrt(45) \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );