document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1005479>Question 1005479</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a certain number is subtracted from 18 and from 13. The product of the two numbers  obtained is 66 . find the first number. <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 #621950 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=621950\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Call the number x.  Then we have<BR>\n" );
document.write( "(18 - x)(13 - x) = 66<BR>\n" );
document.write( "234 - 31x + x^2 = 66<BR>\n" );
document.write( "or<BR>\n" );
document.write( "x^2 - 31x + 168 = 0<BR>\n" );
document.write( "(x - 24)(x - 7) = 0<BR>\n" );
document.write( "x = 24 or x = 7<BR>\n" );
document.write( "Two solutions. </SPAN>\n" );
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