document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=106171>Question 106171</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this equation: log2((x^2)+7)=4   (the first 2 is supposed to be small and at the bottom) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #77220 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=77220\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> solve this equation: log2((x^2)+7)=4 <BR>\n" );
document.write( "Write in exponential form:<BR>\n" );
document.write( "x^2+7 = 2^4<BR>\n" );
document.write( "x^2+7 = 16<BR>\n" );
document.write( "x^2 = 9<BR>\n" );
document.write( "x = 3 or x= -3<BR>\n" );
document.write( "====================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );