Answer:
-(7x + 3) × (x + 3)
Step-by-step explanation:
First you need to write -24x as a difference
-7[tex]x^{2}[/tex] - 3x - 21x - 9
Then, you need to factor the expressions
(factor out -x and -3)
-x × (7x + 3) - 3(7x +3)
Factor out -(7x + 3)
-(7x + 3) × (x + 3)
