document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=143221>Question 143221</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 16x^2=81\r<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 #104207 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=104207\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> subtracting 81 __ 16x^2-81=0 __ factoring (difference of squares) __ (4x+9)(4x-9)=0\r<BR>\n" );
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document.write( "4x+9=0 __ 4x=-9 __ x=-9/4\r<BR>\n" );
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document.write( "4x-9=0 __ 4x=9 __ x=9/4 </SPAN>\n" );
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