document.write( "Question 447697: A rectangle has length x+3 and width x-5. Which equation below describes the area A of the rectangle in terms of x? \n" ); document.write( "
Algebra.Com's Answer #308162 by Leaf W.(135)\"\" \"About 
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Area = length * width
\n" ); document.write( "length: x + 3
\n" ); document.write( "width: x - 5
\n" ); document.write( "A = (x + 3)(x - 5)
\n" ); document.write( "Simplify (x + 3)(x - 5) using the FOIL method:
\n" ); document.write( "1. First numbers: multiply the first number of each binomial together--x*x = \"x%5E2\"
\n" ); document.write( "2. Outer numbers: multiply the outer number of each binomial (out of the entire expression, the number farthest to the left (x) and the number farthest to the right (-5))--x*-5 = -5x
\n" ); document.write( "3. Inner numbers: multiply the inner number of each binomial--3*x = 3x
\n" ); document.write( "4. Last numbers: multiply the last number of each binomial--3*-5 = -15
\n" ); document.write( "==> Now, add all of the results together and combine like terms: \"x%5E2+-+5x+%2B+3x+-+15\" = \"x%5E2+-+2x+-+15\"
\n" ); document.write( "Therefore, A = \"x%5E2+-+2x+-+15\"
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