SOLUTION: A square poster of length 3x is to have a square painting centered on it.The length of the painting is 2x.The area of the poster not covered by the painting will be painted black.W

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Question 128120: A square poster of length 3x is to have a square painting centered on it.The length of the painting is 2x.The area of the poster not covered by the painting will be painted black.What's the area of the poster that will be painted black?
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
(3x)^2=9x^2
(2x)^2=4x^2
-----------subtract
=======5x^2 area of the poster to be painted black.
.
Ed