Answer:
[tex](11x + 3)(x - 3)[/tex]
Step-by-step explanation:
[tex]11 {x}^{2} - 30x - 9[/tex]
[tex] = > 11 {x}^{2} - 33x + 3x - 9[/tex]
[tex] = > 11x(x - 3) + 3(x - 3)[/tex]
[tex] = > (11x + 3)(x - 3)[/tex]