document.write( "Question 1201049: for which values of the variable does the expression make sense?\r
\n" ); document.write( "\n" ); document.write( "√2x-4 \n" ); document.write( "

Algebra.Com's Answer #835302 by ikleyn(52835) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "

\r\n" );
document.write( "\r\n" );
document.write( "If your expression is  ,  then the necessary condition for the expression\r\n" );
document.write( "to be defined over the real numbers is this inequality\r\n" );
document.write( "\r\n" );
document.write( "    2x - 4 >= 0,\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "saying that the radicand is non-negative.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "From this inequality, you have  \r\n" );
document.write( "\r\n" );
document.write( "    2x >= 4  and further  x >= 2.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "It is the ANSWER.\r\n" );
document.write( "

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

\n" );