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= int (4x^2 - 4x + 1) / x^(3/2) dx
= int (4x^2 - 4x + 1) . x^(-3/2) dx
= int (4x^(1/2) - 4x^(-1/2) + x^(-3/2)) dx
= 4. 2/3 x^(3/2) - 4 . 2/1 x^(1/2) + (-2/1)x^(-1/2) + C
= (8/3) x√x - 8√x - 2/√x + C