document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=452661>Question 452661</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Is 4x^2-4x+1 a perfect square? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #311128 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=311128\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> to be a perfect square, it must fit this pattern:\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%5E2+%2B-+2AB+%2B+B%5E2 ALIGN=MIDDLE  ALT=\"A%5E2+%2B-+2AB+%2B+B%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "and it will equal <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28A+%2B-+B%29%5E2 ALIGN=MIDDLE  ALT=\"%28A+%2B-+B%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > respectively for + or – sign in middle term.\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%5E2+%96+4x+%2B+1 ALIGN=MIDDLE  ALT=\"4x%5E2+%96+4x+%2B+1\"   DISABLED_style= \"max-width:90%; height:auto;\" > fits the pattern with <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+2x ALIGN=MIDDLE  ALT=\"A+=+2x\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2AB=-4x ALIGN=MIDDLE  ALT=\"2AB=-4x\"   DISABLED_style= \"max-width:90%; height:auto;\" > ..->.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B=-4x%2F2A=-4x%2F2%2A2x=-4x%2F4x=-1 ALIGN=MIDDLE  ALT=\"B=-4x%2F2A=-4x%2F2%2A2x=-4x%2F4x=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" > . .\r<BR>\n" );
document.write( "\n" );
document.write( "so: \r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%5E2+%2B-+2AB+%2B+B%5E2 ALIGN=MIDDLE  ALT=\"A%5E2+%2B-+2AB+%2B+B%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282x%29%5E2+-2%2A2x%28-1%29%2B%28-1%29%5E2+=%282x+%2B+1%29%5E2 ALIGN=MIDDLE  ALT=\"%282x%29%5E2+-2%2A2x%28-1%29%2B%28-1%29%5E2+=%282x+%2B+1%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );