document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=252885>Question 252885</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If m^2 = 17  then what is the value of (m - 1)(m + 1) ?\r<BR>\n" );
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document.write( "(A) &#8730;17 - 1 (B) &#8730;17 + 1   (C)  16    (D) 18    (E) 288 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #184995 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=184995\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> m^2 = 17 means that m = +/- sqrt(17)\r<BR>\n" );
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document.write( "(m-1)*(m+1) becomes:\r<BR>\n" );
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document.write( "(sqrt(17)-1)*(sqrt(17)+1\r<BR>\n" );
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document.write( "or:\r<BR>\n" );
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document.write( "(-sqrt(17) - 1) * (-sqrt(17) + 1)\r<BR>\n" );
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document.write( "if (sqrt(17)-1)*(sqrt(17)+1, then the product of these 2 factors is processed as follows:\r<BR>\n" );
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document.write( "sqrt(17) * sqrt(17) = 17<BR>\n" );
document.write( "sqrt(17) * 1 = sqrt(17)<BR>\n" );
document.write( "-1 * sqrt(17) = -sqrt(17)<BR>\n" );
document.write( "-1 * 1 = -1\r<BR>\n" );
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document.write( "add these together to get 17 + sqrt(17) - sqrt(17) - 1 = 17 - 1 = 16\r<BR>\n" );
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document.write( "if (-sqrt(17)-1)*(-sqrt(17)+1, then the product of these 2 factors is processed as follows:\r<BR>\n" );
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document.write( "-sqrt(17) * -sqrt(17) = 17<BR>\n" );
document.write( "-sqrt(17) * 1 = -sqrt(17)<BR>\n" );
document.write( "-1 * -sqrt(17) = sqrt(17)<BR>\n" );
document.write( "-1 * 1 = -1\r<BR>\n" );
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document.write( "add these together to get 17 - sqrt(17) + sqrt(17) - 1 = 17 - 1 = 16\r<BR>\n" );
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document.write( "answer would be selection C (16).\r<BR>\n" );
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document.write( " </SPAN>\n" );
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