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= (-1×1)^2 - (-1^2) + 1 - (-2^2)
= 1^2 - 1 + 1 - 4
= 1 - 4
= -3
semoga membantu ^_^
-1 . 1² - (-1)² + 1 - (-2)²
-1 - (1) - 1 + 1 - 4
-1 - 4
-5