document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=448570>Question 448570</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How to solve 7x2=21x ? (seven x squared equals twenty-one x). The answer key says the answer is 0,3 but I do not how how they solved it. My educated guess is that I need to make them both equal to zero but am not sure. Thank you for your help and look forward to hearing from you. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #308639 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=308639\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 7x2=21x ? (seven x squared equals twenty-one x). <BR>\n" );
document.write( "The answer key says the answer is 0,3 but I do not how how they solved it.<BR>\n" );
document.write( "================<BR>\n" );
document.write( "7x^2-21x = 0<BR>\n" );
document.write( "Factor:<BR>\n" );
document.write( "7x(x-3) = 0<BR>\n" );
document.write( "7x = 0 or x-3 = 0<BR>\n" );
document.write( "---<BR>\n" );
document.write( "x = 0 or x = 3<BR>\n" );
document.write( "========================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "=================== </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );