document.write( "Question 468930: if a rectangle is 20 square units and its length is x+4 and width is x-4 what is the dimension of the figure \n" ); document.write( "

Algebra.Com's Answer #321709 by Tatiana_Stebko(1539) $\"\"$ $\"About$

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The area of the rectangle is $\"A=l%2Aw\"$ where l is the length, w is the width of a rectangle
\n" ); document.write( "Then $\"%28x%2B4%29%28x-4%29=20\"$
\n" ); document.write( " $\"x%5E2-16=20\"$
\n" ); document.write( " $\"x%5E2=20%2B16\"$
\n" ); document.write( " $\"x%5E2=36\"$
\n" ); document.write( " $\"x=6\"$
\n" ); document.write( "The length is 6+4=10 inches, the width is 6-4=2 inches
\n" ); document.write( "Answer: 6 inches and 2 inches \n" ); document.write( "

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