Respuesta :

Answer:

10x-20y

Step-by-step explanation:

5 x 2x - 5 x 4y

10x - 20y

Answer:

10 • (x - 2y)

Step-by-step explanation:

Pull out like factors :

    2x - 4y  =   2 • (x - 2y)

Final Result:

 10 • (x - 2y)