document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=783430>Question 783430</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The functions f(x) = x^2 &#8722; 1 and g(x) = x + 3 are defined on the set of real numbers.<BR>\n" );
document.write( "If f (g(a)) = 4 , find ‘a’ correct to 2 significant figures. Thanks :) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #476748 by </B><A HREF=/tutors/aboutme.mpl?userid=oscargut><B>oscargut(2103)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oscargut><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=oscargut><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=476748\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(g(a)) = f(a+3)= (a+3)^2 =4\r<BR>\n" );
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document.write( "a^2+6a+9=4\r<BR>\n" );
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document.write( "a^2+6a+5 = 0\r<BR>\n" );
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document.write( "a = -1 or a = -5\r<BR>\n" );
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document.write( "If you need more help with similar questions you can contact me now at:\r<BR>\n" );
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document.write( "mthman@gmail.com\r<BR>\n" );
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document.write( "Thanks\r<BR>\n" );
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document.write( " </SPAN>\n" );
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