Respuesta :

Answer:

See below

Step-by-step explanation:

-8 and -4 have a GCF of -4, thus:

-8u^2-4u^2

-4(2u^2+u^2)

Factor out u^2:

-4u^2(2+1)

-4u^2(3)

-12u^2

Realistically, it's easier to do (-8-4)u^2