document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=877951>Question 877951</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Why can't(-9+ sqrt(21))/6 be simplified further if all 3 numbers are multiples of three? Shouldn't you get \"-3+7, which gives you 4 from dividing the numerator by 6? or at least 9+ sqrt(7)/2? By the way the question is (3x+3)(x+2)=1 solve by quadratic formula. The help would be much obliged. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #529625 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39623)</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=529625\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (-9+ sqrt(21))/6<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-9%2B+sqrt%2821%29%29%2F6 ALIGN=MIDDLE  ALT=\"%28-9%2B+sqrt%2821%29%29%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > cannot be simplified because the terms of the numerator cannot be combined without approximation, and because all three separate numbers have no factors in common.  Stated more plainly, -9 and sqrt(21) and 6 have no common factor. \r<BR>\n" );
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document.write( "Do not confuse the square root with the input of the square root.  Seven is not a factor of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2821%29 ALIGN=MIDDLE  ALT=\"sqrt%2821%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  </SPAN>\n" );
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