document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=34285>Question 34285</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0030700396/algebrahomeworkh>Algebra 1</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> How do I complete the square of x^2-x-20=0 to the nearest hundredth? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #20563 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=20563\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x^2-x-20=0<BR>\n" );
document.write( "(x^2-x   = 20<BR>\n" );
document.write( "Complete the square on the left side and maintain the equality as follows:<BR>\n" );
document.write( "x^2-x+(1/2)^2  = 20 + (1/2)^2<BR>\n" );
document.write( "Factor the left side and simplify the right to get:<BR>\n" );
document.write( "(x-(1/2))^2 = 81/4<BR>\n" );
document.write( "Take the sqrt of both sides to get;<BR>\n" );
document.write( "x-(1/2) = +9/2  or x-(1/2)= -9/2<BR>\n" );
document.write( "Then x=10/2=5  or x=-8/2= -4<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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