document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=729512>Question 729512</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me understand this:<BR>\n" );
document.write( "(x+9)^2=64 <BR>\n" );
document.write( "I tried this:<BR>\n" );
document.write( "(x+9)^2=64 <BR>\n" );
document.write( "x^2+81=64<BR>\n" );
document.write( "I'm not sure what to do from here.<BR>\n" );
document.write( "Do you subtract 81 from both sides or subtract 64? <BR>\n" );
document.write( "If you subtract 81 then it will be x^2=-17; how do I solve this? <BR>\n" );
document.write( "I cannot use the quadratic function because the number you have to square root it by is a negative number and we haven't learned that yet so I don't think that is right.   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #445916 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20849)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=445916\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "you tried this:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B9%29%5E2=64 ALIGN=MIDDLE  ALT=\"%28x%2B9%29%5E2=64\"   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%2B81=64 ALIGN=MIDDLE  ALT=\"x%5E2%2B81=64\"   DISABLED_style= \"max-width:90%; height:auto;\" >..this is incorrect <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B9%29%5E2=x%5E2%2B18x%2B81 ALIGN=MIDDLE  ALT=\"%28x%2B9%29%5E2=x%5E2%2B18x%2B81\"   DISABLED_style= \"max-width:90%; height:auto;\" > not <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B81 ALIGN=MIDDLE  ALT=\"x%5E2%2B81\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "try it this way:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B9%29%5E2=64+ ALIGN=MIDDLE  ALT=\"%28x%2B9%29%5E2=64+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B9%29%5E2=8%5E2+ ALIGN=MIDDLE  ALT=\"%28x%2B9%29%5E2=8%5E2+\"   DISABLED_style= \"max-width:90%; height:auto;\" >....since exponents same, bases are same to, so we have\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B9%29=8+ ALIGN=MIDDLE  ALT=\"%28x%2B9%29=8+\"   DISABLED_style= \"max-width:90%; height:auto;\" >.....solve for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=8-9+ ALIGN=MIDDLE  ALT=\"x=8-9+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-1+ ALIGN=MIDDLE  ALT=\"x=-1+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "check:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-1%2B9%29%5E2=64+ ALIGN=MIDDLE  ALT=\"%28-1%2B9%29%5E2=64+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%288%29%5E2=64+ ALIGN=MIDDLE  ALT=\"%288%29%5E2=64+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=64=64+ ALIGN=MIDDLE  ALT=\"64=64+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );