Answer:
(x +3)(x -6)
Explanation:
You want the factored form of (x +3)² -9x -27.
Factors
Factoring the last two terms, we have ...
(x +3)(x +3) -9(x +3) . . . . factor out -9
= (x +3)(x +3 -9) . . . . . . factor out (x +3)
= (x +3)(x -6) . . . . . . simplify