document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=112928>Question 112928</A>: <I><SPAN STYLE=\"word-break: break-all;\"> it's a word problem.\r<BR>\n" );
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document.write( "Nancy wants to buy a mat for a photographtaht measures 14 in by 20 in.  She wants to have an even border around the picture when it is mounted on the mat.  If the area of the mat is 352 in squared How wide will the border be?  I know the anwser is 1 inch.  I just don't see why.\r<BR>\n" );
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document.write( "Here's what I've tried.\r<BR>\n" );
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document.write( "A=LW<BR>\n" );
document.write( "(14+x)squared (20+x)Squared\r<BR>\n" );
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document.write( "280+14x + 20x+xSquared<BR>\n" );
document.write( "280+34x+xsquared=0\r<BR>\n" );
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document.write( "Since this can't be factored i subtracted the 280 from both sides and got<BR>\n" );
document.write( "x2 +34x    = -280\r<BR>\n" );
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document.write( "half of 34 is 17 and 17 times 17 is 136\r<BR>\n" );
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document.write( "So this becomes <BR>\n" );
document.write( "x2 +34x + 136 = -144<BR>\n" );
document.write( "(x-72)squared = -144<BR>\n" );
document.write( "x-72 = sqare root of -144<BR>\n" );
document.write( "x-72 = 12i<BR>\n" );
document.write( "x=72+or-12i<BR>\n" );
document.write( "but this doesn't equal 1 inch.   Please help me </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #82279 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=82279\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x=\"width of border\"\r<BR>\n" );
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document.write( "if the photo is 14 by 20, then the mat will be (14+2x) by (20+2x)<BR>\n" );
document.write( "___ an x width border on both ends of length and width\r<BR>\n" );
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document.write( "so the area is (14+2x)(20+2x), which equals 352\r<BR>\n" );
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document.write( "280+68x+4x^2=352 ___ x^2+17x-18=0 ___ (x+18)(x-1)=0 </SPAN>\n" );
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