Question

please answer my question​

Answer 1

it should be x^3 instead of x^2

Answer 2

Step-by-step explanation:

$= > {x}^{3} - 3 {x}^{2} - x + 3 = 0 \\ = > ( {3})^{3} - 3 {(3)}^{2} - 3 + 3 = 0 \\ = > 27 - 27 - 3 + 3 = 0 \\ = > 0 = 0$