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Write a simplified algebraic expression for the tile collection below. (The names of the algebra tiles can be found in problem A-1.)    

Your teacher will provide a model.

To solve this problem, you will need to group the tiles by their areas.
How many -tiles are there? -tiles?

Use the eTool below to write a simplified expression.
Click the link at the right to view full version of the eTool: A-7 HW eTool