(x + 1)^3 – (x + 1) (x^2 – x + 1) – 3x (x – 1) (x – 2)^3 – x (x – 3)^2 + 1 12/09/2021 Bởi Eva (x + 1)^3 – (x + 1) (x^2 – x + 1) – 3x (x – 1) (x – 2)^3 – x (x – 3)^2 + 1
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