document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=90282>Question 90282</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need help with this question and I have absolutely no clue how to do it.  It states:  find all the zeros of the function: x^3+3x^2-x+12 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #65524 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=65524\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find all the zeros of the function: f(x) = x^3+3x^2-x+12<BR>\n" );
document.write( "I graphed it and found a zero at x=-4<BR>\n" );
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document.write( "Using synthetic division find the following:<BR>\n" );
document.write( "-4)....1....3....-1....12<BR>\n" );
document.write( "........1....-1....3...|..0\r<BR>\n" );
document.write( "\n" );
document.write( "===============<BR>\n" );
document.write( "Remainder = 0 because x=-4 is a zero<BR>\n" );
document.write( "Quotient is x^2-x+3<BR>\n" );
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document.write( "Find the zeroes of x^2-x+3 using the quadratic formula:<BR>\n" );
document.write( "x=[1+-sqrt(1-4*1*3)]/2<BR>\n" );
document.write( "x=[1+-sqrt(13)]/2<BR>\n" );
document.write( "x= (1+sqrt(13))/2 or x=(1-sqrt(13))/2<BR>\n" );
document.write( "==================<BR>\n" );
document.write( "You now have three zeroes of f(x)<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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