document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=608563>Question 608563</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use the quadratic formula to solve the equation. I forgot how to do this. Can someone please help me<BR>\n" );
document.write( "x^2 - x = -1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #383300 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=383300\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Use the quadratic formula to solve the equation. I forgot how to do this. Can someone please help me<BR>\n" );
document.write( "x^2 - x = -1<BR>\n" );
document.write( "Rearrange:<BR>\n" );
document.write( "x^2 -x + 1 = 0<BR>\n" );
document.write( "a = 1 ; b = -1 ; c = 1<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Formula: x = [-b+-sqrt(b^2-4ac)]/(2a)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Your Problem:<BR>\n" );
document.write( "x = [1 +- sqrt(1 -4*1*1)]/(2*1)<BR>\n" );
document.write( "----<BR>\n" );
document.write( "x  [1 +- sqrt(-3)]/2<BR>\n" );
document.write( "---<BR>\n" );
document.write( "x = (1/2) + (i/2)sqrt(3) or x = (1/2) - (i/2)sqrt(3)<BR>\n" );
document.write( "========================================================<BR>\n" );
document.write( "cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );