document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=100878>Question 100878</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello, thank you for taking the time to reply to my email. I am currently enrolled in a precalculus class and I had a question. The quadratic equation is Ax^2+Bx+C=0, but how do you use the quadratic formula if C is 0. I was told to eliminate it, since the number in the square root sign then just becomes B^2. Can you please explain why you can eliminate C? ( use an example please) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #73500 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=73500\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> if C is eliminated (or 0), then the equation becomes Ax^2+Bx=0\r<BR>\n" );
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document.write( "factoring gives (x)(Ax+B)=0 ... so x=0 and x=-B/A\r<BR>\n" );
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document.write( "C is not involved in the solution </SPAN>\n" );
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