document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=119488>Question 119488</A>: <I><SPAN STYLE=\"word-break: break-all;\"> original problem: 5x^2-30x+40=0   <BR>\n" );
document.write( "               work:<BR>\n" );
document.write( "5x^2-30x=-40<BR>\n" );
document.write( "x^2-6x=-8<BR>\n" );
document.write( "x^2-6x+9=-8+9\r<BR>\n" );
document.write( "\n" );
document.write( "Please help.  I keep getting lost.  Could you show me how to work this problem step by step?  I already have the answer, so I'm not looking for that, just how to do it.  The answer is x=2, x=4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #87535 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=87535\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve for x:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5x%5E2-30x%2B40+=+0 ALIGN=MIDDLE  ALT=\"5x%5E2-30x%2B40+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > First, you can factor a 5 from this quadratic equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%28x%5E2-6x%2B8%29+=+0 ALIGN=MIDDLE  ALT=\"5%28x%5E2-6x%2B8%29+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > Now apply the \"zero product principle\": If<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%2Ab+=+0 ALIGN=MIDDLE  ALT=\"a%2Ab+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" >then either<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+=+0 ALIGN=MIDDLE  ALT=\"a+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" >or<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b+=+0 ALIGN=MIDDLE  ALT=\"b+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > or both.<BR>\n" );
document.write( "So...<BR>\n" );
document.write( "If <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%28x%5E2-6x%2B8%29+=+0 ALIGN=MIDDLE  ALT=\"5%28x%5E2-6x%2B8%29+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" >then either <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5+=+0 ALIGN=MIDDLE  ALT=\"5+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > (obviously not true!) or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2-6x%2B8+=+0 ALIGN=MIDDLE  ALT=\"x%5E2-6x%2B8+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" >. Ok, so...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2-6x%2B8+=+0 ALIGN=MIDDLE  ALT=\"x%5E2-6x%2B8+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > Solve this by factoring:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x-2%29%28x-4%29+=+0 ALIGN=MIDDLE  ALT=\"%28x-2%29%28x-4%29+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > ...again, apply the \"zero product principle\"...<BR>\n" );
document.write( "If <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x-2+=+0 ALIGN=MIDDLE  ALT=\"x-2+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > then <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+2 ALIGN=MIDDLE  ALT=\"x+=+2\"   DISABLED_style= \"max-width:90%; height:auto;\" > or<BR>\n" );
document.write( "If <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x-4+=+0 ALIGN=MIDDLE  ALT=\"x-4+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > then <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+4 ALIGN=MIDDLE  ALT=\"x+=+4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The solutions are, as you have stated, x = 2 or x = 4. </SPAN>\n" );
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