document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=331534>Question 331534</A>: <I><SPAN STYLE=\"word-break: break-all;\"> x3+7x2-21x-27=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #237596 by </B><A HREF=/tutors/aboutme.mpl?userid=Jk22><B>Jk22(389)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Jk22><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/cgi-bin/show-face.mpl?user=Jk22><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=237596\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> P(x)=x3+7x2-21x-27=0\r<BR>\n" );
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document.write( "Check : P(-1)=-1+7+21-27=0, hence P(x) is dividable by x+1 : \r<BR>\n" );
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document.write( "x^3+7x^2-21x-27 | x+1<BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "x^3+x^2_________| x^2+6x-27<BR>\n" );
document.write( "----------------|----------<BR>\n" );
document.write( "6x^2-21x________|<BR>\n" );
document.write( "6x^2+6x_________|<BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "-27x-27_________|<BR>\n" );
document.write( "-27x-27<BR>\n" );
document.write( "---------------------------<BR>\n" );
document.write( "0\r<BR>\n" );
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document.write( "=>P(x)=(x+1)(x^2+6x-27)=(x+1)(x+9)(x-3) by Viete's method </SPAN>\n" );
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