document.write( "Question 1052973: Find two integers whose difference is 4 and whose square differ by 72 \n" ); document.write( "
Algebra.Com's Answer #668280 by ikleyn(52781)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "Answer. 11 and 7.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Solution\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\r\n" );
document.write( "\"x%5E2+-+y%5E2\" = 72  --->\r\n" );
document.write( "\r\n" );
document.write( "(x-y)*(x+y) = 72.\r\n" );
document.write( "\r\n" );
document.write( "But x-y = 4, according to the condition. Hence,\r\n" );
document.write( "\r\n" );
document.write( "4*(x+y) = 72  --->\r\n" );
document.write( "\r\n" );
document.write( "x + y = \"72%2F4\" = 18.\r\n" );
document.write( "\r\n" );
document.write( "So, you have two equations:\r\n" );
document.write( "\r\n" );
document.write( "x + y = 18,\r\n" );
document.write( "x - y =  4.\r\n" );
document.write( "\r\n" );
document.write( "Add them.\r\n" );
document.write( "\r\n" );
document.write( "From this point, please complete the solution on your own.\r\n" );
document.write( "

\n" ); document.write( "
\n" ); document.write( "
\n" );