James was solving a subtraction problem using algebra tiles and he ended with 1x^2-tile, 2-x^2-tiles, and 1-1-tile. Mode these results with algebra tiles. Assuming James steps were correct up to that point, complete the explanation of his mistake. Enter the algebraic expression and select the tiles that should be his result. James (select) finished simplifying. The tiles are the same size with the opposite sides are (select pairs) and cancel each other out.

The completely simplified expression is (awnser)