Respuesta :

7(2x+4y+3) Factor 7 out of 14x+28y+21

Answer:

7(2x + 4y + 3)

Step-by-step explanation:

Find a common factor between all of the terms.  In this case, it is 7, so divide all three numbers by 7.  Put the 7 on the outside of the parentheses and put the divided numbers, with the correct signs and variables, inside the parentheses.