document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=52851>Question 52851</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find all real values of x such that f(x)=0:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28x%29=x%5E2-9 ALIGN=MIDDLE  ALT=\"f%28x%29=x%5E2-9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "please help<BR>\n" );
document.write( "thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #35304 by </B><A HREF=/tutors/aboutme.mpl?userid=rchill><B>rchill(405)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rchill><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=35304\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We rewrite the equation to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0=x%5E2-9 ALIGN=MIDDLE  ALT=\"0=x%5E2-9\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  Add 9 to both sides to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9=x%5E2 ALIGN=MIDDLE  ALT=\"9=x%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  Now take the square root of both sides and we see that x=3 or x=-3. </SPAN>\n" );
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