document.write( "Question 175730: The width of a pool table is x feet, and the length is 4 feet longer than the width. Find polynomials A(x) and P(x) that represent the area and perimeter of the pool table. Find A(4) and P(4). \n" ); document.write( "
Algebra.Com's Answer #130886 by EMStelley(208)\"\" \"About 
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Since the width of the table is x, we can represent the length by x+4. Thus, since perimeter = 2L + 2W,
\n" ); document.write( "P(x) = 2x + 2(x+4)
\n" ); document.write( "P(x) = 2x + 2x + 8
\n" ); document.write( "P(x) = 4x + 8
\n" ); document.write( "P(4) = 4(4) + 8 = 24 feet
\n" ); document.write( "Area is length times width, so
\n" ); document.write( "\"A%28x%29=x%28x%2B4%29=x%5E2%2B4x\"
\n" ); document.write( "\"A%284%29=4%5E2%2B4%284%29\"
\n" ); document.write( "So A(4) = 32 square feet
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