document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=132874>Question 132874</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve : 3(2^(2x)) - 2^(x+2) +1=0 <BR>\n" );
document.write( "I am having real trouble with this one , I hope someone can help me:) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #97094 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=97094\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve : 3(2^(2x)) - 2^(x+2) +1=0 <BR>\n" );
document.write( "3(2^(2x) -[2^x*2^2] + 1 = 0<BR>\n" );
document.write( "3(2^2x) -4(2^x] + 1 = 0<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "Let 2^x = w<BR>\n" );
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document.write( "Rewrite the equation in \"w\":<BR>\n" );
document.write( "3w^2 -4w + 1 = 0<BR>\n" );
document.write( "Factor:<BR>\n" );
document.write( "(3w-1)(w-1) = 0<BR>\n" );
document.write( "w = 1/3 or w = 1<BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "Rewrite in terms of \"x\":<BR>\n" );
document.write( "2^x = (1/3) or 2^x = 1<BR>\n" );
document.write( "x = [log(1/3)]/[log2] or x = [log1]/[log2]<BR>\n" );
document.write( "x = -1.58496... or x = 0<BR>\n" );
document.write( "=============================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );