<PRE><B>Question 565088</B>
Let width = 2x

Let length = 2x + 6

Let A = area = 216

Here is the equation you need:


216 = 2x(2x + 6)

After solving for x, you will get two answers: one will be positive and the other negative.  Reject the negative answer because your question deals with measurement.

Can you  take it from here?



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