Answer:
[tex]f(x) = (x - 3)( {x}^{2} + 3x - 2)[/tex]
Step-by-step explanation:
[tex](x - 3)( {x}^{2} + 3x - 2) \\ {x}^{3} + 3 {x}^{2} - 2x - 3 {x}^{2} - 9x + 6 \\ {x}^{3} - 2x - 9x + 6 \\ {x}^{3} - 11x + 6[/tex]