document.write( "Question 41079: *******A picture frame is 20 cm by 12 cm. There are 84cm^2 of a picture showing. Find the width of the frame.**** please help, i reall need this problem, it my grade \n" ); document.write( "
Algebra.Com's Answer #26508 by Paul(988)\"\" \"About 
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Let x be the uniform width
\n" ); document.write( "EQUATION:
\n" ); document.write( "(20-2x)(12-2x)=84
\n" ); document.write( "\"4x%5E2-64x%2B240=84\"
\n" ); document.write( "\"4x%5E2-64x%2B156=0\"
\n" ); document.write( "\"x%5E2-16x%2B39=0\"
\n" ); document.write( "x=3 or x=13
\n" ); document.write( "Hence, the unifrom width is 3 cm.
\n" ); document.write( "Paul.
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