Which of the following functions has a factor of x + 1?
O f(x) = x³ - 13x² + 44x - 32
O f(x) = x³ - 11x² + 20x +32
O f(x) = x³ - 11x² + 20x +33
O f(x) = x³ - 13x² + 44x - 33