Factor the gcf: 28a3b4 + 20a2b2 − 16ab3.

Step-by-step explanation:

28a3b4 + 20a2b2 − 16ab3.

To find GCF we look at a factor that divides 28, 20 and -16

All are divisible by 4. GCF of numbers is 4

for a^3, a^2 and a. GCF is always the variable with lowest exponent that is 'a'

for b^4, b^2 and b^3 the GCF is b^2

for whole expression the GCF is 4ab^2

Now we divide each term by GCF and put 4ab^2 outside

its a little blurry tbh

step-by-step explanation:

m a t h w a y. c o m

step-by-step explanation: