document.write( "Question 311553: The outside of a picture frame measures 12cm by 20cm: 84cm squared of picture shows. ?Find the width of the frame?\r
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Algebra.Com's Answer #222869 by checkley77(12844)\"\" \"About 
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(12-X)(20-X)=84
\n" ); document.write( "240-20X-12X+X^2=84
\n" ); document.write( "X^2-32X+240-84=0
\n" ); document.write( "X^2-32X+156=0
\n" ); document.write( "(X-6)(X-26)=0
\n" ); document.write( "X-6=0
\n" ); document.write( "X=6 CM. ANS. FOR THE WIDTH OF THE FRAANE.
\n" ); document.write( "PROOF:
\n" ); document.write( "(12-6)(20-6)=84
\n" ); document.write( "6*14=84
\n" ); document.write( "84=84
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