document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=67999>Question 67999</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm not sure how to do this problem, can you please help?<BR>\n" );
document.write( "Thanks!<BR>\n" );
document.write( "Consider:\r<BR>\n" );
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document.write( "x + 6x^(1/2) + 9 = 0\r<BR>\n" );
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document.write( "Can we use the quadratic formula to solve this equation, and if so how?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #49281 by </B><A HREF=/tutors/aboutme.mpl?userid=Nate><B>Nate(3500)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Nate><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=49281\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y = x^(1/2) or sqrt(x)<BR>\n" );
document.write( "(x^(1/2))^2 + 6x^(1/2) + 9 = 0<BR>\n" );
document.write( "(y)^2 + 6y + 9 = 0<BR>\n" );
document.write( "(y + 3)(y + 3) = 0<BR>\n" );
document.write( "(sqrt(x) + 3)^2 = 0<BR>\n" );
document.write( "sqrt(x) + 3 = 0<BR>\n" );
document.write( "sqrt(x) = -3<BR>\n" );
document.write( "x = 9<BR>\n" );
document.write( "Plug:<BR>\n" );
document.write( "9 + 6*sqrt(9) + 9 = 0<BR>\n" );
document.write( "18 +- 18 = 0<BR>\n" );
document.write( "When the sqrt(9) is negative, the answer is correct. Otherwise, no solution. </SPAN>\n" );
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