document.write( "Question 68781: 2(1/2)^2 + (-1/2) -1 = \n" ); document.write( "
\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "-1\r\n" ); document.write( "\r\n" ); document.write( "Therefore, \r\n" ); document.write( "