Respuesta :

Answer:

-9x-12

Step-by-step explanation:

You're just expanding

3(-3x - 4) is just 3(-3x) + 3(-4)

-9x - 12

Answer:-9x-12

Step-by-step explanation:

Let’s using with expanding.

3(-3x)= -9x and 3(-4) is -12.

The expression is -9x-12