Question

Find the gcf of each pair of monomials. 20a 24ab.

Question 11 options:

4

4a

2a

120a

Answer 1

4a

Explanation:

all work is shown and pictured

Answer 2

The answer is option B : 4a.

Explanation:

GCF or the greatest common factor.

20a = a x 2 x 2 x 5

24ab = a x b x 2 x 2 x 2 x 3

So, the greatest common factors are :

a x 2 x 2 = 4a

Hence, the answer is 4a or option B.