document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=70104>Question 70104</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve by completing the square to obtain exact solutions?<BR>\n" );
document.write( "x square -3x = 18<BR>\n" );
document.write( "x2-3x=18 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #49974 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=49974\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> solve by completing the square to obtain exact solutions?<BR>\n" );
document.write( "x square -3x = 18<BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "x^2-3x=18<BR>\n" );
document.write( "Divide the coefficient of \"x\" by 2 and square the result to get the following:<BR>\n" );
document.write( "Note: The sign of the coefficient makes no difference because you are going to<BR>\n" );
document.write( "square the result.<BR>\n" );
document.write( "x^2-3x+(3/2)^2=18+(3/2)^2<BR>\n" );
document.write( "Factor the left side and simplify the right side:<BR>\n" );
document.write( "(x+(3/2))^2= 18+(9/4)<BR>\n" );
document.write( "(x+(3/2))^2 = 81/4<BR>\n" );
document.write( "Take the square root of both sides to get:<BR>\n" );
document.write( "x+(3/2)= 9/2 or x+(3/2)= -(9/2)<BR>\n" );
document.write( "x=3  or x=-6<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );