document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=149902>Question 149902</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Simplify and state any restrictions on varibles<BR>\n" );
document.write( "x2-16<BR>\n" );
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document.write( "x2+3x-4\r<BR>\n" );
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document.write( "the x with the 2 beside it is squared  <BR>\n" );
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document.write( "thank you\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 #110008 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=110008\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (x^2-16)/(x2+3x-4)<BR>\n" );
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document.write( "Factoring the numerator:<BR>\n" );
document.write( "[(x+4)(x-4)]/(x2+3x-4)<BR>\n" );
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document.write( "Factoring the denominator:<BR>\n" );
document.write( "[(x+4)(x-4)]/[(x+4)(x-1)]<BR>\n" );
document.write( "NOTICE, the entire expression is \"undefined\" if the denominator goes to zero.  It will be zero if x = {-4, 1}<BR>\n" );
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document.write( "Going back to:<BR>\n" );
document.write( "[(x+4)(x-4)]/[(x+4)(x-1)]<BR>\n" );
document.write( "Canceling out the (x+4) we get our solution of:<BR>\n" );
document.write( "(x-4)/(x-1)  <BR>\n" );
document.write( "if x DOES NOT equal -4 or 1\r<BR>\n" );
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