Respuesta :

Answer:

4x + 12

Step-by-step explanation:

If you distribute the 4 to both terms, you can expand the expression. We multiply 4 by x or 1x to get 4x. Then we multiply 4 by 3 to get 12. All in all, we have 4x + 12, which is the same as 4(x+3).

It should be 4x+12 because 4*3=12 you have to distribute