document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=329908>Question 329908</A>: <I><SPAN STYLE=\"word-break: break-all;\"> x^3 + 5x^2 - 4x - 20 = 0<BR>\n" );
document.write( "i know that's the cubic equation, but i seriously can't find a good equation to find the roots. I NEED HELP!\r<BR>\n" );
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document.write( "x^4 + 9x^3 + 18x^2 = 0<BR>\n" );
document.write( "i know this is a quartic trinomial, but i don't know how to solve this and the paper expects 4 roots.\r<BR>\n" );
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document.write( "(3x + 1)(2x + 7) = 0<BR>\n" );
document.write( "i think i set these equal to zero, but am i supposed to get a fraction? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #237054 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=237054\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> grouping ___ (x^3 + 5x^2) - (4x + 20)\r<BR>\n" );
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document.write( "factoring ___ x^2(x + 5) - 4(x + 5)\r<BR>\n" );
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document.write( "rearranging ___ (x^2 - 4)(x + 5)\r<BR>\n" );
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document.write( "factoring (difference of squares) ___ (x + 2)(x - 2)(x + 5)\r<BR>\n" );
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document.write( "factoring ___ x^2(x^2 + 9x +18) = 0\r<BR>\n" );
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document.write( "factoring again ___ (x)(x)(x + 6)(x + 3) = 0 ___ x = 0 is a double root\r<BR>\n" );
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document.write( "roots do NOT have to be whole numbers (or rational , for that matter) </SPAN>\n" );
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