document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=6443>Question 6443</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me with this problem.\r<BR>\n" );
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document.write( "Solve the equation.\r<BR>\n" );
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document.write( "21n^2 + 63n = 0 </SPAN>\n" );
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document.write( "21n^2 + 63n = 0<BR>\n" );
document.write( "21n(n + 3) = 0<BR>\n" );
document.write( "21n = 0 , n + 3 = 0<BR>\n" );
document.write( "n = 0, n = -3 (Answer) </SPAN>\n" );
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