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Determine which of the following polynom...

Determine which of the following polynomials has `(x+1)` as a factor.
(i) `x^(3)-x^(2)-x+1`
(ii) `x^(4)-x^(3)+x^(2)-x+1`
(iii) `x^(4)+2x^(3)+2x^(2)+x+1`
(iv) `x^(3)-x^(2)-(3-sqrt(3))x+sqrt(3)`

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int((2x-1)^(2)(x+3))/(sqrt(x))dx