document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=686945>Question 686945</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find all integers k such that the trinomial is a perfect square trinomial \r<BR>\n" );
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document.write( "64x(squared) + kxy + y (squared) \r<BR>\n" );
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document.write( " So am I just replacing k ?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #424941 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20849)</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=424941\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \r<BR>\n" );
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document.write( "Perfect Square Trinomials: These are of the form <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2By%29%5E2+=+%28x%2By%29%28x%2By%29+=+x%5E2+%2B2xy%2By%5E2 ALIGN=MIDDLE  ALT=\"%28x%2By%29%5E2+=+%28x%2By%29%28x%2By%29+=+x%5E2+%2B2xy%2By%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "given:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=64x%5E2+%2B+k%2Axy+%2B+y+%5E2 ALIGN=MIDDLE  ALT=\"64x%5E2+%2B+k%2Axy+%2B+y+%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%288x%29%5E2+%2B+k%2Axy+%2B+1%2Ay+%5E2 ALIGN=MIDDLE  ALT=\"%288x%29%5E2+%2B+k%2Axy+%2B+1%2Ay+%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > ....using a Rule for the Square of a Sum (a + b) ^2 = a ^2 + 2ab + b ^2, where <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=8 ALIGN=MIDDLE  ALT=\"a=8\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=1 ALIGN=MIDDLE  ALT=\"b=1\"   DISABLED_style= \"max-width:90%; height:auto;\" > we can find <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k ALIGN=MIDDLE  ALT=\"k\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "and it is  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2A8%2A1=16 ALIGN=MIDDLE  ALT=\"2%2A8%2A1=16\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%288x%29%5E2+%2B+16xy+%2B+y+%5E2 ALIGN=MIDDLE  ALT=\"%288x%29%5E2+%2B+16xy+%2B+y+%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%288x+%2B+y%29%5E2 ALIGN=MIDDLE  ALT=\"%288x+%2B+y%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%288x+%2B+y%29%288x+%2B+y%29 ALIGN=MIDDLE  ALT=\"%288x+%2B+y%29%288x+%2B+y%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( " </SPAN>\n" );
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