simplify (2(x+2)² + (y-1)² + (y-2)² - 2r²) - (2(x+1)² + y² + (y-1)² - 2r²)simplify (2(x+2)² + (y-1)² + (y-2)² - 2r²) - (2(x+1)² + y² + (y-1)² - 2r²)

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