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Area of square = (2x-3)^2
Area = 2x-3 x 2x-3
Area = 4x^2 -6x -6x +9
Area = 4x^2 -12x + 9
Area of ovals = x-5 + x-5 = 2x-10
Area of square - area of ovals:
4x^2 - 12x +9 - 2x -10
4x^2 -14x +19 square units