document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=498825>Question 498825</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I don't understand how to solve this problem. Thank you.\r<BR>\n" );
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document.write( "It says solve and check the quadratic equation below by taking the square root of both sides. Express irrational answers in rational form.\r<BR>\n" );
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document.write( "(x-10)^2=4\r<BR>\n" );
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document.write( "thank you so much  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #337205 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=337205\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> equation is:<BR>\n" );
document.write( "(x-10)^2=4 <BR>\n" );
document.write( "take the square root of both sides of the equation to get:<BR>\n" );
document.write( "x-10 = sqrt(4) which becomes:<BR>\n" );
document.write( "x-10 = 2<BR>\n" );
document.write( "add 10 to both sides of the equation to get:<BR>\n" );
document.write( "x = 12<BR>\n" );
document.write( "substitute for x in the original equation to get:<BR>\n" );
document.write( "(12-10)^2 = 4<BR>\n" );
document.write( "simplify to get:<BR>\n" );
document.write( "2^2 = 4<BR>\n" );
document.write( "simplify further to get:<BR>\n" );
document.write( "4 = 4<BR>\n" );
document.write( "x = 12 is confirmed as good.<BR>\n" );
document.write( "that's  your answer.<BR>\n" );
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