document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=323191>Question 323191</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve.\r<BR>\n" );
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document.write( "(x+15)(x-10)(x+5)> 0\r<BR>\n" );
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document.write( "Is there no solution?\r<BR>\n" );
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document.write( "Is it all real numbers?\r<BR>\n" );
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document.write( "Use at least one inequality or compound inequality  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #231344 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=231344\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve. <BR>\n" );
document.write( "(x+15)(x-10)(x+5)> 0 <BR>\n" );
document.write( "Is there no solution? <BR>\n" );
document.write( "Is it all real numbers? <BR>\n" );
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document.write( "Draw and number line and plot x=-15, x= -5 , x = 10<BR>\n" );
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document.write( "That divides the number line into 4 segment.<BR>\n" );
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document.write( "Test a value from each segment to see where the solutions lie.<BR>\n" );
document.write( "Substitute into : (x+15)(x-10)(x+5)> 0<BR>\n" );
document.write( "If x = -20 you get -*-*- > 0 ; false so no solutions in (-inf,-10)<BR>\n" );
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document.write( "If x = -10 you get +*-*- > 0 ; true so solutions in (-15,-5)<BR>\n" );
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document.write( "If x = 0 you get: +*-*+ > 0 ; false so no solutions in (-5,10)<BR>\n" );
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document.write( "If x = 20 you get: +*+*+ > 0 ; true so solutions in (10,+inf)<BR>\n" );
document.write( "=========================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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