document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=402335>Question 402335</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi, can you please help me?\r<BR>\n" );
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document.write( "I need to solve the following equation:\r<BR>\n" );
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document.write( "t^4-3t^3-40t^2=0\r<BR>\n" );
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document.write( "Can you please show me how to do it?\r<BR>\n" );
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document.write( "thank you so much! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #284618 by </B><A HREF=/tutors/aboutme.mpl?userid=sofiyac><B>sofiyac(983)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=sofiyac><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=sofiyac><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=284618\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> start by factoring out <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5E2 ALIGN=MIDDLE  ALT=\"t%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5E2%28t%5E2-3t-40%29=0 ALIGN=MIDDLE  ALT=\"t%5E2%28t%5E2-3t-40%29=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > factor further<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5E2%28t-8%29%28t%2B5%29=0 ALIGN=MIDDLE  ALT=\"t%5E2%28t-8%29%28t%2B5%29=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > set each part equal to zero and solve for t<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5E2=0 ALIGN=MIDDLE  ALT=\"t%5E2=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=0 ALIGN=MIDDLE  ALT=\"t=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t-8=0 ALIGN=MIDDLE  ALT=\"t-8=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=8 ALIGN=MIDDLE  ALT=\"t=8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2B5=0 ALIGN=MIDDLE  ALT=\"t%2B5=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=-5 ALIGN=MIDDLE  ALT=\"t=-5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So the answers are t=0, or t=8 or t=-5. </SPAN>\n" );
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