document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1194289>Question 1194289</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The ages of two sisters are 9 and 12 years respectively. In how many years time will the product of their ages be 418 years?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #826439 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=826439\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x is the number of years from now.<BR>\n" );
document.write( "(9+x)(12+x)=418<BR>\n" );
document.write( "108+9x+12x+x^2=418<BR>\n" );
document.write( "x^2+21x-310=0<BR>\n" );
document.write( "(x+31)(x-10)=0<BR>\n" );
document.write( "x=10 years from now, only positive root.<BR>\n" );
document.write( "they will be 19 and 22, and that product is 418.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );