document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=98145>Question 98145</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve algebraically and check your potential solutions:   sqrt(x+20)-x=0 \r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #71378 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=71378\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> sqrt(x+20)-x=0 <BR>\n" );
document.write( "sqrt(x+20)=x<BR>\n" );
document.write( "square each side: x+20=x^2<BR>\n" );
document.write( "x^2-x-20=0<BR>\n" );
document.write( "Factor. (x-5)(x+4)=0<BR>\n" );
document.write( "x=5 and x=-4<BR>\n" );
document.write( "Check:<BR>\n" );
document.write( "sqrt(5+20)-5=0 true<BR>\n" );
document.write( "sqrt(-4+20)-4=0 true<BR>\n" );
document.write( "Ed </SPAN>\n" );
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