document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=178781>Question 178781</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 7x-28<BR>\n" );
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document.write( "x^2-16\r<BR>\n" );
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document.write( "can you help me simplify the equation and then show the restrictions? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #133752 by </B><A HREF=/tutors/aboutme.mpl?userid=Mathtut><B>Mathtut(3670)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Mathtut><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=133752\">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=%287x-28%29%2F%28x%5E2-16%29 ALIGN=MIDDLE  ALT=\"%287x-28%29%2F%28x%5E2-16%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%28x-4%29%2F%28x%2B4%29%28x-4%29 ALIGN=MIDDLE  ALT=\"7%28x-4%29%2F%28x%2B4%29%28x-4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7cross%28%28x-4%29%29%2F%28x%2B4%29cross%28%28x-4%29%29 ALIGN=MIDDLE  ALT=\"7cross%28%28x-4%29%29%2F%28x%2B4%29cross%28%28x-4%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F%28x%2B4%29 ALIGN=MIDDLE  ALT=\"7%2F%28x%2B4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "restrictions are x can be all real numbers except for -4. -4 would put a zero in the denominator and that would make this undefined, therefore it is not allowed. </SPAN>\n" );
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