Answer:
(x - 3) (x² + 1)
Explanation:
x³+x-3x² -3
x³ - 3x² + x - 3
Factor out the greatest common factor from each group.
x² (x - 3) + 1 (x - 3)
Factor the polynomial by factoring out the greatest common factor, x−3.
(x - 3) (x² + 1)
So, the answer is (x - 3) (x² + 1)