document.write( "Question 1083617: If \"x%2By=2\" and \"+x%2Ay=23\" what is \"x%5E2%2By%5E2\"? \n" ); document.write( "
Algebra.Com's Answer #697644 by ikleyn(52874)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "
\r\n" );
document.write( "If x + y = 2 then (squaring both sides)\r\n" );
document.write( "\r\n" );
document.write( "\"x%5E2+%2B+2xy+%2B+y%5E2\" = 4.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Subtract 2xy from the left side and subtract the equal value 2*23 = 46 from the right side, and you will get the \r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "ANSWER: \"x%5E2+%2B+y%5E2\" = 4 - 46 = -42.\r\n" );
document.write( "
\r
\n" ); document.write( "\n" ); document.write( "Surely, the pair (x,y) is not a pair of real numbers.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "They are COMPLEX numbers, instead.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );