document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=3850>Question 3850</A>: <I><SPAN STYLE=\"word-break: break-all;\"> FIND THE DOMAIN {3X+4} </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #1689 by </B><A HREF=/tutors/aboutme.mpl?userid=longjonsilver><B>longjonsilver(2297)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=longjonsilver><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=longjonsilver><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=1689\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> if roots are (4+i) and (4-i), then we can say:\r<BR>\n" );
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document.write( "x=(4+i) or x=(4-i)\r<BR>\n" );
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document.write( "so, x-(4+i)=0 or x-(4-i)=0\r<BR>\n" );
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document.write( "So, the factors are (x-(4+i))(x-(4-i))=0<BR>\n" );
document.write( "hence (x-4-i)(x-4+i)=0\r<BR>\n" );
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document.write( "Now expand, to give <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2+-+4x+%2B+xi+-+4x+%2B+16+-+4i+-+xi+%2B+4i+-+i%5E2+=+0 ALIGN=MIDDLE  ALT=\"x%5E2+-+4x+%2B+xi+-+4x+%2B+16+-+4i+-+xi+%2B+4i+-+i%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=x%5E2+-+8x+%2B+16+-+i%5E2+=+0 ALIGN=MIDDLE  ALT=\"x%5E2+-+8x+%2B+16+-+i%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=x%5E2+-+8x+%2B+16+-+%28-1%29+=+0 ALIGN=MIDDLE  ALT=\"x%5E2+-+8x+%2B+16+-+%28-1%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=x%5E2+-+8x+%2B+17+=+0 ALIGN=MIDDLE  ALT=\"x%5E2+-+8x+%2B+17+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So, a possible equation is y=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2+-+8x+%2B+17 ALIGN=MIDDLE  ALT=\"x%5E2+-+8x+%2B+17\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "jon. </SPAN>\n" );
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