document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=253742>Question 253742</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Four times the square of a number is 21 more than eight times the number. What is the number? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #186142 by </B><A HREF=/tutors/aboutme.mpl?userid=palanisamy><B>palanisamy(496)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=palanisamy><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=186142\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let the required number be x.<BR>\n" );
document.write( "Given, four times the square of a number is 21 more than eight times the number<BR>\n" );
document.write( "    4x^2= 8x+21<BR>\n" );
document.write( "    4x^2-8x-21 =0<BR>\n" );
document.write( "    4x^2-14x+6x-21 = 0<BR>\n" );
document.write( "    2x(2x-7)+3(2x-7) = 0<BR>\n" );
document.write( "    (2x-7)(2x+3) = 0<BR>\n" );
document.write( "           2x-7 =0   or  2x+3 = 0<BR>\n" );
document.write( "             2x = 7  or  2x = -3 <BR>\n" );
document.write( "              x = 7/2 or  x = -3/2 </SPAN>\n" );
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