document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1206462>Question 1206462</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Grandpa and his grandson Gary both had their birthday yesterday. Today, grandpa's age in years is an even number and 15 times that of Gary. In 4 years time Grandpa's age in years will be the square of Gary's age in years. How many years older than Gary is grandpa today? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #843971 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=843971\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Grandpa and his grandson Gary both had their birthday yesterday.\r<BR>\n" );
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document.write( " Today, grandpa's age in years is an even number and 15 times that of Gary. In 4 years time Grandpa's age in years will be the square of Gary's age in years. How many years older than Gary is grandpa today?\r<BR>\n" );
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document.write( " Let Grandson's age to day be x years<BR>\n" );
document.write( "Grandpa's age will be 15x\r<BR>\n" );
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document.write( "After 4 years\r<BR>\n" );
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document.write( "15x+4 = (x+4)^2\r<BR>\n" );
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document.write( "15x +4 = x^2+8x+16\r<BR>\n" );
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document.write( "x^2-7x+12=0\r<BR>\n" );
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document.write( "x^2-4x-3x+12 =0\r<BR>\n" );
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document.write( "x(x-4)-3(x-4)=0\r<BR>\n" );
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document.write( "(x-3)(x-4)=0\r<BR>\n" );
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document.write( "x = 3 OR 4\r<BR>\n" );
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document.write( "Grandson's age is 4\r<BR>\n" );
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document.write( "Grandpa's age = 15*4 =60   (Grandpa's age is even)\r<BR>\n" );
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document.write( "find the difference\r<BR>\n" );
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document.write( " </SPAN>\n" );
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