document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=189935>Question 189935</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello.\r<BR>\n" );
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document.write( "Find all x that will make f(x)= 0\r<BR>\n" );
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document.write( "f(x)= x^2 + 2x - 4\r<BR>\n" );
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document.write( "thanks!<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #142508 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=142508\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find all x that will make f(x)= 0 <BR>\n" );
document.write( "f(x)= x^2 + 2x - 4 <BR>\n" );
document.write( "------------------------<BR>\n" );
document.write( "x^2+2x-4 = 0<BR>\n" );
document.write( "Use the quadratic formula to get:<BR>\n" );
document.write( "x = [-2 +- sqrt(2^2 - 4*1*-4)]/2<BR>\n" );
document.write( "---<BR>\n" );
document.write( "x = [-2 +- sqrt(20)]/2\r<BR>\n" );
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document.write( "x = [-2 +- 2sqrt(5)]/2\r<BR>\n" );
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document.write( "x = [-1 +- sqrt(5)]<BR>\n" );
document.write( "============================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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