document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=392090>Question 392090</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a 2cm wide frame is placed around a square photograph. if the total area of the frame and photograph is 144cm^2. determine the dimensions of the photograph </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #278311 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=278311\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x  = edge of the square photo. Then its area is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2 ALIGN=MIDDLE  ALT=\"x%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Area of the 4 square corners = 4*2*2 = 16,<BR>\n" );
document.write( "Area of the 4 rectangles making up the frame = 4*2*x = 8x.<BR>\n" );
document.write( "Then <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=16+%2B+8x+%2B+x%5E2+=+144 ALIGN=MIDDLE  ALT=\"16+%2B+8x+%2B+x%5E2+=+144\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "==>  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2+%2B+8x+-+128+=+0 ALIGN=MIDDLE  ALT=\"x%5E2+%2B+8x+-+128+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > ==> (x + 16)(x-8) = 0 ==> x = 8.<BR>\n" );
document.write( "Therefore the photo 8cm x 8 cm. </SPAN>\n" );
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