SOLUTION: A rectangle has a width of 2X inches and a length that is 6 inches longer. The area is 216 sq. inches. Find the dimensions.

Algebra ->  Rectangles -> SOLUTION: A rectangle has a width of 2X inches and a length that is 6 inches longer. The area is 216 sq. inches. Find the dimensions.       Log On


   

Question 565088: A rectangle has a width of 2X inches and a length that is 6 inches longer. The area is 216 sq. inches. Find the dimensions.
Answer by nyc_function(2741) About Me  (Show Source):
You can put this solution on YOUR website!
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?