document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=866821>Question 866821</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The age of a man is twice the square of the age of his son.8 years hence, the age of the man will be 4 years more than 3 times the age of his son. Find their present ages. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #522525 by </B><A HREF=/tutors/aboutme.mpl?userid=dkppathak><B>dkppathak(439)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=dkppathak><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=dkppathak><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=522525\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The age of a man is twice the square of the age of his son.8 years hence, the age of the man will be 4 years more than 3 times the age of his son. Find their present ages.<BR>\n" );
document.write( "Let age of son is X yrs <BR>\n" );
document.write( "age of man will be  2X^2<BR>\n" );
document.write( "8 yrs hence age of son will be= X+8 yrs<BR>\n" );
document.write( "8 yrs hence age of man will be =2X^2+8\r<BR>\n" );
document.write( "\n" );
document.write( "as per given conditions <BR>\n" );
document.write( "2X^2+8= 3(X+8)+4<BR>\n" );
document.write( "X^2 +8 =3x+24+4<BR>\n" );
document.write( "2x^2+8 =3x+28<BR>\n" );
document.write( "2X^2-3x-20=0<BR>\n" );
document.write( "2X^2-8X+5X-20=0<BR>\n" );
document.write( "2x(x-4)+5(x-4)=0<BR>\n" );
document.write( "(x-4)(2x+5)=0<BR>\n" );
document.write( "x=4 or x=-5/2<BR>\n" );
document.write( "neglecting negative value  of age <BR>\n" );
document.write( "x=4<BR>\n" );
document.write( "present age of son is   4 yrs <BR>\n" );
document.write( "present age of man is    32 yrs  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );