document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=769484>Question 769484</A>: <I><SPAN STYLE=\"word-break: break-all;\"> ±&#8730;324 - how do you solve this </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #468879 by </B><A HREF=/tutors/aboutme.mpl?userid=tommyt3rd><B>tommyt3rd(5050)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tommyt3rd><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=tommyt3rd><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=468879\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A method of extracting roots is to use the factorization of a number (by successively dividing out primes until the number is manageable) <BR>\n" );
document.write( "factoring 324...\r<BR>\n" );
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document.write( "324=2*162=<BR>\n" );
document.write( "2^2*81=2^2*9^2\r<BR>\n" );
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document.write( "so that 324 = (2*9)^2 = 18^2\r<BR>\n" );
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document.write( "therefore the square root of 324 is 18\r<BR>\n" );
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document.write( "±&#8730;324 = ±18 </SPAN>\n" );
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