document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=450731>Question 450731</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do you solve this equation for a b and c using the quadratic formula\r<BR>\n" );
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document.write( "x^2 - 4x -7 = 0\r<BR>\n" );
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document.write( "thanks for any help </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #310172 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=310172\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Note that if the quadratic equation is in the form\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE ax^2 + bx + c = 0\">, then\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\">\r<BR>\n" );
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document.write( "Simply equate the coefficients. Here, a = 1, b = -4, and c = -7, because the x^2 coefficient is 1, etc. Then replace them into the quadratic formula to find the two possible values of x.\r<BR>\n" );
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