document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=452885>Question 452885</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi. How would I solve the problem log2 (x^2-9)=4    Would I factor out the (x^3-9) to make its (x+3) (x-3) Then go from there? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #311230 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=311230\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=log%282%2C+x%5E2+-+9%29+=+4 ALIGN=MIDDLE  ALT=\"log%282%2C+x%5E2+-+9%29+=+4\"   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=2%5E4+=+x%5E2+-+9 ALIGN=MIDDLE  ALT=\"2%5E4+=+x%5E2+-+9\"   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=25+=+x%5E2 ALIGN=MIDDLE  ALT=\"25+=+x%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "==> x = -5, 5.\r<BR>\n" );
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document.write( "Both values satisfy the original equation, and so are the final answers. </SPAN>\n" );
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