document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=974471>Question 974471</A>: <I><SPAN STYLE=\"word-break: break-all;\"> f(x) = x^2 + x-2, find f(a-1) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #596360 by </B><A HREF=/tutors/aboutme.mpl?userid=algebrahouse.com><B>algebrahouse.com(1659)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=algebrahouse.com><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=algebrahouse.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=596360\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x) = x² + x - 2\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "f(a - 1)<BR>\n" );
document.write( "= (a - 1)² + (a - 1) - 2    {substituted (a - 1) for x}<BR>\n" );
document.write( "= (a - 1)(a - 1) + a - 1 - 2 {when squaring a binomial, multiply it by itself}<BR>\n" );
document.write( "= a² - 2a + 1 + a - 1 - 2 {used the foil method to square the binomial}<BR>\n" );
document.write( "= a² - a - 2 {combined like terms}<BR>\n" );
document.write( "<br>To ask a question, visit: <a  rel=nofollow HREF= \"http://www.algebrahouse.com/algebra-house.html\" target = \"_blank\">www.algebrahouse.com</a><br><br><br> </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );