document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1009650>Question 1009650</A>: <I><SPAN STYLE=\"word-break: break-all;\"> y=x^4 - x^3 -4x^2 +4. find factor and graph.\r<BR>\n" );
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document.write( "I only factor to this step:<BR>\n" );
document.write( "(x^3 - 4x-4)(x-1) = y<BR>\n" );
document.write( " but i don't know how to continue this step to require factor more.  Please help. this is algebra 2.  Thank you.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #625113 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39625)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=625113\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You would be interested in grouping, or movement of terms to try to factorize, if for Algebra 2.\r<BR>\n" );
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document.write( "You just need to try different placements of the terms.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%28x%5E2-1%29%2B4-4x%5E2 ALIGN=MIDDLE  ALT=\"x%5E2%28x%5E2-1%29%2B4-4x%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%28x%5E2-1%29%2B4%281-x%5E2%29 ALIGN=MIDDLE  ALT=\"x%5E2%28x%5E2-1%29%2B4%281-x%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Notice the two factors which appear very much alike but are not equal!<BR>\n" );
document.write( "Trick is multiply the second expression by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-1 ALIGN=MIDDLE  ALT=\"-1\"   DISABLED_style= \"max-width:90%; height:auto;\" >, TWICE.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%28x%5E2-1%29%2B%28-1%294%28-1%29%281-x%5E2%29 ALIGN=MIDDLE  ALT=\"x%5E2%28x%5E2-1%29%2B%28-1%294%28-1%29%281-x%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%28x%5E2-1%29-4%28x%5E2-1%29 ALIGN=MIDDLE  ALT=\"x%5E2%28x%5E2-1%29-4%28x%5E2-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Factor the whole expression.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2-1%29%28x%5E2-4%29 ALIGN=MIDDLE  ALT=\"%28x%5E2-1%29%28x%5E2-4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Observe, two quadratic factors according to difference of squares.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28%28x-1%29%28x%2B1%29%28x-2%29%28x%2B2%29%29 ALIGN=MIDDLE  ALT=\"highlight%28%28x-1%29%28x%2B1%29%28x-2%29%28x%2B2%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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