document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=244009>Question 244009</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the quadratic equation of 4x^2-8x-9=0\r<BR>\n" );
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document.write( "(simplifiy your answer. type an exact answer using radicals as needed. Use integers or fractions for any number in the expression. Express complex numbers in the form of i.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #178629 by </B><A HREF=/tutors/aboutme.mpl?userid=mathitutor><B>mathitutor(25)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mathitutor><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=178629\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 4x^2-8x-9=0<BR>\n" );
document.write( "=> (2x)^2 - 2.2x.2 + 2^2 -9 -4 = 0<BR>\n" );
document.write( "=> (2x -2)^2 = 13<BR>\n" );
document.write( "=> 2x - 2 = +sqrt(13) or -sqrt(13)<BR>\n" );
document.write( "=> 2x = 2 +sqrt(13) or 2-sqrt(13)<BR>\n" );
document.write( "x = 1 + sqrt(13)/2 or 1 - sqrt(13)/2 </SPAN>\n" );
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