document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=66338>Question 66338</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/093979862x/algebrahomeworkh>An Incremental Development</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Please help :\r<BR>\n" );
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document.write( "Complete the square as an aid in graphing :\r<BR>\n" );
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document.write( "y = x^2 + 2x - 1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #47044 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=47044\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Complete the square as an aid in graphing : <BR>\n" );
document.write( "y = x^2 + 2x - 1<BR>\n" );
document.write( "---------<BR>\n" );
document.write( "x^2+2x+? = y+1+?<BR>\n" );
document.write( "Complete the square to get:<BR>\n" );
document.write( "x^2+2x+1=y+1+1<BR>\n" );
document.write( "Factor the left side to get:<BR>\n" );
document.write( "(x+1)^2 = y+2<BR>\n" );
document.write( "Solve for y, as follows:<BR>\n" );
document.write( "y=(x+1)^2-2<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );