document.write( "Question 207152: The width of a rectangular playground is 2x-5 feet and the length is 3x+9 feet. Write a polynomial that represents the perimeter and then evaluate this perimeter polynomial if x = 4 feet. \n" ); document.write( "
Algebra.Com's Answer #156597 by ankor@dixie-net.com(22740)\"\" \"About 
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The width of a rectangular playground is 2x-5 feet and the length is 3x+9 feet.
\n" ); document.write( " Write a polynomial that represents the perimeter
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\n" ); document.write( "The perimeter formula:
\n" ); document.write( "p = 2L + 2W
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\n" ); document.write( "Replace L & W with given expressions
\n" ); document.write( "p = 2(3x+9) + 2(2x-5)
\n" ); document.write( "Multiply what's inside the brackets
\n" ); document.write( "p = 6x + 18 + 4x - 10
\n" ); document.write( "Combine like terms
\n" ); document.write( "p = 10x + 8
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\n" ); document.write( "\"and then evaluate this perimeter polynomial if x = 4 feet.\"
\n" ); document.write( "Replace x with 4
\n" ); document.write( "p = 10(4) + 8
\n" ); document.write( "p = 48 ft
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