document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=133285>Question 133285</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the equation<BR>\n" );
document.write( " 3x^4-11x^2-20=0<BR>\n" );
document.write( " 81x^4=16<BR>\n" );
document.write( " 4x^3-8x^2-x+2=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #97515 by </B><A HREF=/tutors/aboutme.mpl?userid=vleith><B>vleith(2983)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vleith><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=97515\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Given: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3x%5E4-11x%5E2-20=0+ ALIGN=MIDDLE  ALT=\"+3x%5E4-11x%5E2-20=0+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283x+%2B+4%29+%28x+-5%29+ ALIGN=MIDDLE  ALT=\"%283x+%2B+4%29+%28x+-5%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "x = -4/3   and x = 5\r<BR>\n" );
document.write( "\n" );
document.write( "Given: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=81x%5E4=16 ALIGN=MIDDLE  ALT=\"81x%5E4=16\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Take the quad root of each side<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%5E4+%2A+x%5E4+=+2%5E4+ ALIGN=MIDDLE  ALT=\"3%5E4+%2A+x%5E4+=+2%5E4+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x+=+2 ALIGN=MIDDLE  ALT=\"3x+=+2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = 2/3\r<BR>\n" );
document.write( "\n" );
document.write( "Given: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+4x%5E3-8x%5E2-x%2B2=0 ALIGN=MIDDLE  ALT=\"+4x%5E3-8x%5E2-x%2B2=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%5E2%28x+-2%29+-+%28x-2%29+=+0+ ALIGN=MIDDLE  ALT=\"4x%5E2%28x+-2%29+-+%28x-2%29+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%284x%5E2+-1%29+%28x-2%29+=+0 ALIGN=MIDDLE  ALT=\"+%284x%5E2+-1%29+%28x-2%29+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282x-1%29%282x%2B1%29+%28x-2%29+=+0+ ALIGN=MIDDLE  ALT=\"%282x-1%29%282x%2B1%29+%28x-2%29+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = 1/2, -1/2 , 2 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );