document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=807784>Question 807784</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if seven is added to two times a number, the result is eight less than the square of the number. Find all such numbers? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #486526 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=486526\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let number be x<BR>\n" );
document.write( "2 times a number = 2x<BR>\n" );
document.write( "7 added to it<BR>\n" );
document.write( "2x+7\r<BR>\n" );
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document.write( "square of number = x^2<BR>\n" );
document.write( "8 less<BR>\n" );
document.write( "x^2-8\r<BR>\n" );
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document.write( "2x+7 = x^2-8\r<BR>\n" );
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document.write( "x^2-2x-15=0\r<BR>\n" );
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document.write( "x^2-5x+3x-15=0<BR>\n" );
document.write( "x(x-5)+3(x-5)=0\r<BR>\n" );
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document.write( "(x-5)(x+3)=0\r<BR>\n" );
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document.write( "x=5 OR x=-3 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );