document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=600693>Question 600693</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1. SQR(x+20)=x<BR>\n" );
document.write( "2.SQR(10x)-(2)SQR(5x-25)=0\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Solve each of the following. Check for extraneous solutions.\r<BR>\n" );
document.write( "\n" );
document.write( "What I know is;  1. x+20=x^2<BR>\n" );
document.write( "That's as far as I know. I don't know how to check for extraneous solutions. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #379461 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=379461\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1. SQR(x+20)=x<BR>\n" );
document.write( "2.SQR(10x)-(2)SQR(5x-25)=0\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Solve each of the following. Check for extraneous solutions.\r<BR>\n" );
document.write( "\n" );
document.write( "What I know is;  1. x+20=x^2<BR>\n" );
document.write( "That's as far as I know. I don't know how to check for extraneous solutions.<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "x+20=x^2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2+-+x+-+20+=+0 ALIGN=MIDDLE  ALT=\"x%5E2+-+x+-+20+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(x-5)*(x+4) = 0<BR>\n" );
document.write( "x = -4<BR>\n" );
document.write( "x = 5<BR>\n" );
document.write( "-------<BR>\n" );
document.write( "Check each answer to see if it works.<BR>\n" );
document.write( "They both work --> no extraneous solutions.<BR>\n" );
document.write( "======================<BR>\n" );
document.write( "2.SQR(10x)-(2)SQR(5x-25)=0<BR>\n" );
document.write( "SQR(10x) = (2)SQR(5x-25)<BR>\n" );
document.write( "Square both sides<BR>\n" );
document.write( "10x = 4*(5x - 25)<BR>\n" );
document.write( "etc<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );