document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=867961>Question 867961</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Simplify each expression. Rationalize all denominators Assume that all variables are positive. \r<BR>\n" );
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document.write( "(2 - sqrt5)(2 + sqrt5) \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 #523282 by </B><A HREF=/tutors/aboutme.mpl?userid=ramkikk66><B>ramkikk66(644)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ramkikk66><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=523282\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Expression is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282+-+sqrt%285%29%29+%2A+%282+%2B+sqrt%285%29%29 ALIGN=MIDDLE  ALT=\"%282+-+sqrt%285%29%29+%2A+%282+%2B+sqrt%285%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "This is of the form (a + b)*(a - b). Using the identity<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28a+-+b%29%2A%28a+%2B+b%29+=+a%5E2+-+b%5E2 ALIGN=MIDDLE  ALT=\"%28a+-+b%29%2A%28a+%2B+b%29+=+a%5E2+-+b%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The answer is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%5E2+-+5 ALIGN=MIDDLE  ALT=\"2%5E2+-+5\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4+-+5 ALIGN=MIDDLE  ALT=\"4+-+5\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28-1%29 ALIGN=MIDDLE  ALT=\"highlight%28-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Hope you got it! </SPAN>\n" );
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