document.write( "Question 31868This question is from textbook algebra
\n" ); document.write( ": A square pool has length p. The border of the pool is 1 ft. wide. The combined area of the border and the pool is 400ft squared. Find the area of the pool \n" ); document.write( "

Algebra.Com's Answer #18434 by Paul(988) $\"\"$ $\"About$

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you may need to draw a diagram for better understanding:
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document.write( " __________________        
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document.write( "| 1______________1 |
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document.write( "|1|              |1|
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document.write( "| |             p| |
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document.write( "|1|______________|1|P+2
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document.write( "|_1______________1_|
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document.write( "Total area = 400ft.
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document.write( "Total length for a side = p+2:
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document.write( "Area of a square is given by n^2:
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document.write( "Factor:
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document.write( "(p-18)(p+22)=0
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document.write( "p=18 or p=-22
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document.write( "Remove the negative, and hence, the length for the square is 18ft long, and the area of the pool is 324ft squared.
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document.write( "18^2=324ft
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document.write( "Paul. \n" );
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