document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=72589>Question 72589</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have checked all possible answers and heeeeeers my question. someone please explain how do I need to do this. You guys/gals are all I have in helping me.\r<BR>\n" );
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document.write( "for f(x) = 1/x^2 -2x -8, find the interval(s) where f(x) < 0.<BR>\n" );
document.write( "-4, 2<BR>\n" );
document.write( "-2, 4<BR>\n" );
document.write( "2, 4<BR>\n" );
document.write( "2, 8\r<BR>\n" );
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document.write( "Thank you if you can take the time to teach me. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #51896 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=51896\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x) = 1/x^2 -2x -8, find the interval(s) where f(x) < 0.<BR>\n" );
document.write( "f(x) = 1/[(x-4)(x-2)]<BR>\n" );
document.write( "F(x) will be<0 when [(x-4)(x-2)] is less than zero and x is not 2 or 4.<BR>\n" );
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document.write( "When is (x-4)(x-2)<0   ??<BR>\n" );
document.write( "Draw a number line and mark x=2 and x=4 on it.<BR>\n" );
document.write( "That establishes three intervals.<BR>\n" );
document.write( "Find the intervals which make (x-4)(x-2)<0<BR>\n" );
document.write( "Check interval (-inf,2); select x=-100; you get (100-4)(100-2)>0 Therefore<BR>\n" );
document.write( "the interval is NOT part of the solution.<BR>\n" );
document.write( "Check interval (2.4); select x=3; you get (3-4)(3-2)<0 Therefore the <BR>\n" );
document.write( "interval is part of the solution.<BR>\n" );
document.write( "Check interval (4,inf); select x=100; you get (100-4)(100-2)>0 Therefore <BR>\n" );
document.write( "the interval is NOT part of the solution.<BR>\n" );
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document.write( "Solution summary: (2,4) <BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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