document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1061844>Question 1061844</A>: <I><SPAN STYLE=\"word-break: break-all;\"> (4x-3)^2=-81,Solve for x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #676596 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=676596\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (4x-3)^2=-81,Solve for x<BR>\n" );
document.write( "square toots of both sides<BR>\n" );
document.write( "4x-3=+/-9i<BR>\n" );
document.write( "4x-3+9i<BR>\n" );
document.write( "4x=3+9i<BR>\n" );
document.write( "x=(1/4)(3+9i)<BR>\n" );
document.write( "x=(1/4)(3-9i)<BR>\n" );
document.write( "Longer way is to foil it out and use the quadratic formula.<BR>\n" );
document.write( "16x^2-24x+9+81=0<BR>\n" );
document.write( "16x^2-24x+90=0<BR>\n" );
document.write( "8x^2-12x+45=0<BR>\n" );
document.write( "x=(1/16)(12+/-sqrt (144-1440); sqrt (-1296)=-36i<BR>\n" );
document.write( "x=(1/16)(12+36i), or (1/4)(3+9i)<BR>\n" );
document.write( "x=(1/16)(12-36i) or (1/4)((3-9i)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );