document.write( "Question 69150: find the area of a rectangle with length, l = 2x + 3 and width, w = 2x - 3
\n" ); document.write( "a. 4x2
\n" ); document.write( "b. 4x2 - 12x + 9
\n" ); document.write( "c. 4x2 - 9
\n" ); document.write( "d. 4x2 + 9
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Algebra.Com's Answer #49215 by Earlsdon(6294)\"\" \"About 
You can put this solution on YOUR website!
The area of a rectangle is given by:
\n" ); document.write( "\"A+=+L%2AW\" Substituting L = 2x+3 and W = 2x-3, you get:
\n" ); document.write( "\"A+=+%282x%2B3%29%282x-3%29\" Perform the indicated multiplication and simplify.
\n" ); document.write( "\"A+=+4x%5E2+-9\" ...and you're done!
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