document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=45435>Question 45435</A>: <I><SPAN STYLE=\"word-break: break-all;\"> (X) square_> 9 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #30183 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=30183\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x^2>=9<BR>\n" );
document.write( "x^2-9>0<BR>\n" );
document.write( "(x-3)(x+3)>=0<BR>\n" );
document.write( "Plot the points 3 and -3 on a number line thus breaking <BR>\n" );
document.write( "the number line into three intervals:<BR>\n" );
document.write( "x<-3<BR>\n" );
document.write( "-3<x<3<BR>\n" );
document.write( "3<x<BR>\n" );
document.write( "Check a value in each interval to determine whether the <BR>\n" );
document.write( "interval values are or are not part of the solution, for<BR>\n" );
document.write( "example:<BR>\n" );
document.write( "In the interval -3<x<3 pick the value x=0<BR>\n" );
document.write( "Then check 0^2>=9<BR>\n" );
document.write( "0>=9<BR>\n" );
document.write( "This is false so that interval conains no solutions.<BR>\n" );
document.write( "Then check a value in each of the other two intervals.\r<BR>\n" );
document.write( "\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );