document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=887202>Question 887202</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For the given equations, find a) f(0) b) the zeros of f<BR>\n" );
document.write( "(I got the first part, a, but I didn't understand the second part, b. It would be great if someone helped :) ) <BR>\n" );
document.write( "1. f(x) = 4x - 20<BR>\n" );
document.write( "2. f(x) = x^2 + 4x - 12 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #536452 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=536452\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> For the given equations, find a) f(0) b) the zeros of f<BR>\n" );
document.write( "(I got the first part, a, but I didn't understand the second part, b. It would be great if someone helped :) ) <BR>\n" );
document.write( "1. f(x) = 4x - 20<BR>\n" );
document.write( "a) f(0)=0-20=-20<BR>\n" );
document.write( "b) set f(x)=0<BR>\n" );
document.write( "0=4x-20<BR>\n" );
document.write( "4x=20<BR>\n" );
document.write( "x=5 (a zero of f)\r<BR>\n" );
document.write( "\n" );
document.write( "2. f(x) = x^2 + 4x - 12<BR>\n" );
document.write( "a) f(0)=0+0-12=-12<BR>\n" );
document.write( "b) set f(x)=0<BR>\n" );
document.write( "0=x^2+4x-12<BR>\n" );
document.write( "x^2+4x-12=0<BR>\n" );
document.write( "(x+6)(x-2)=0<BR>\n" );
document.write( "x+6=0<BR>\n" );
document.write( "x=-6<BR>\n" );
document.write( "or<BR>\n" );
document.write( "x-2=0<BR>\n" );
document.write( "x=2<BR>\n" );
document.write( "zeros of f are -6 and 2\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );