document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=268163>Question 268163</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If the sides of a square are lengthened by 7cm, the area becomes 121cm^2. Find the length of a side of the original square. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #196589 by </B><A HREF=/tutors/aboutme.mpl?userid=drk><B>drk(1908)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=drk><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=196589\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Area of original square = x^2<BR>\n" );
document.write( "Area of new square = (x+7)^2 = 121.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B7%29%5E2+=+121 ALIGN=MIDDLE  ALT=\"%28x%2B7%29%5E2+=+121\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "step 1 - tale a square root to get<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B7%29+=+11 ALIGN=MIDDLE  ALT=\"%28x%2B7%29+=+11\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "step 2 - subtract 7 to get<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+4 ALIGN=MIDDLE  ALT=\"x+=+4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "length of a side of the original square is 4 cm </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );