document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=317509>Question 317509</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mary is thinking of two binomials where one is 5 more than the square of a number x and the other is 5 less than the square of a number x. Mary wants you to find the product of the two binomials and evaluate the polynomial for x=3. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #227368 by </B><A HREF=/tutors/aboutme.mpl?userid=nyc_function><B>nyc_function(2741)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nyc_function><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=nyc_function><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=227368\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (x^2 + 5)(x^2 - 5)\r<BR>\n" );
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document.write( "We use FOIL to multiply.\r<BR>\n" );
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document.write( "x^4 -5x^2 + 5x^2 - 25\r<BR>\n" );
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document.write( "x^4 - 25.\r<BR>\n" );
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document.write( "She then needs to replace x with 3 and evaluate the polynomial x^4 - 25.\r<BR>\n" );
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document.write( "Let x = 3.\r<BR>\n" );
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document.write( "(3)^4 - 25 = 81 - 25 or 56\r<BR>\n" );
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document.write( "Done! </SPAN>\n" );
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