document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=236040>Question 236040</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do you factor x^3-4x^2-5x+20 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #173789 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=173789\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> factor x^3-4x^2-5x+20<BR>\n" );
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document.write( "I graphed it and found a zero at x = 4.<BR>\n" );
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document.write( "Use synthetic division to find the other roots.<BR>\n" );
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document.write( "4)....1....-4....-5....20<BR>\n" );
document.write( ".......1.....0.....-5...|..0\r<BR>\n" );
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document.write( "Quotient x^2-5<BR>\n" );
document.write( "Remainder : zero<BR>\n" );
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document.write( "Solve x^2-5 = 0<BR>\n" );
document.write( "x = sqrt(5) or x = -sqrt(5)<BR>\n" );
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document.write( "The three roots are 4, sqrt(5), -sqrt(5)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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