document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=998702>Question 998702</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the largest value of x that satisfies: \r<BR>\n" );
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document.write( "log(base2)(x^2)-log(base2)(x+4)=2\r<BR>\n" );
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document.write( "I was not able to find the answer, here are my step I tried to solve it.\r<BR>\n" );
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document.write( "log(base2)(x^2)-log(base2)(x+4)=2<BR>\n" );
document.write( "log(base2) (x^2)/(x+4)=2<BR>\n" );
document.write( "2^2= (x^2)/(x+4)<BR>\n" );
document.write( "4= (x^2)/(x+4)<BR>\n" );
document.write( "4(x+4)=x^2<BR>\n" );
document.write( "4x+16=x^2<BR>\n" );
document.write( "sqrt(4x+16)=x<BR>\n" );
document.write( "2x+4=x<BR>\n" );
document.write( "x=-4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #629940 by </B><A HREF=/tutors/aboutme.mpl?userid=Romolo><B>Romolo(1)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Romolo><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=629940\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You were on the right track till 4x+16=x^2\r<BR>\n" );
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document.write( "You can't solve sqrt(4x+16)=x   \r<BR>\n" );
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document.write( "but you must bring all elements to the same side and equate to zero<BR>\n" );
document.write( "like this:\r<BR>\n" );
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document.write( "x^2-4x-16 = 0\r<BR>\n" );
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document.write( "then solve as usual by quadratic equations.\r<BR>\n" );
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document.write( "Ciao </SPAN>\n" );
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