document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=288697>Question 288697</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me with this problem<BR>\n" );
document.write( "which quadratic has roots 3 + i and 3  i?\r<BR>\n" );
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document.write( "1.  x2  6x + 10 = 0 <BR>\n" );
document.write( "2.  x2 + 6x  10 = 0 <BR>\n" );
document.write( "3.  x2  6x + 8 = 0 <BR>\n" );
document.write( "4.  x2 + 6x  8 = 0<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #209224 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=209224\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hint: if <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=a ALIGN=MIDDLE  ALT=\"x=a\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=b ALIGN=MIDDLE  ALT=\"x=b\"   DISABLED_style= \"max-width:90%; height:auto;\" > are solutions, this means that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x-a=0 ALIGN=MIDDLE  ALT=\"x-a=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x-b=0 ALIGN=MIDDLE  ALT=\"x-b=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >. Use the zero product property to then get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x-a%29%28x-b%29=0 ALIGN=MIDDLE  ALT=\"%28x-a%29%28x-b%29=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >. From there, FOIL out the expression. In your case, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=3%2Bi ALIGN=MIDDLE  ALT=\"a=3%2Bi\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=3-i ALIGN=MIDDLE  ALT=\"b=3-i\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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