document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=707342>Question 707342</A>: <I><SPAN STYLE=\"word-break: break-all;\"> When the sum of 630 and four times a positive number is subtracted from the square of the number, the result is 150.   Find the 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 #435664 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=435664\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> When the sum of 630 and four times a positive number is subtracted from the square of the number, the result is 150. Find the number.\r<BR>\n" );
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document.write( "Let the number be \"x\":<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "x^2-(630 + 4x) = 150<BR>\n" );
document.write( "x^2 -4x -780 = 0<BR>\n" );
document.write( "(x+26)(x-30) = 0<BR>\n" );
document.write( "Positive solution:<BR>\n" );
document.write( "x = 30<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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