SOLUTION: My rectangular soccer field site has a length equal to twice its width. Find its area in terms of its length x

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Question 492273: My rectangular soccer field site has a length equal to twice its width. Find its area in terms of its length x
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Start with the formula for the area of a rectangle:
A+=+L%2AW Let L(length) = x and W(Width) = 2x.
A+=+x%282x%29
A+=+2x%5E2