Respuesta :

Answer:

Factor and set each factor equal to zero.

Always true

Step-by-step explanation:

Answer: 4(3+5)

Step-by-step explanation:

4 is the greatest common factor of 12 and 20

12+20

= 4 ⋅ 3 + 4 ⋅ 5

= 4(3+5)  Apply the distributive property.

The Answer :

4 (3+5)