Find the GCF of 42m - 28n.
a. 2
b. 84
c. 7
d. 14
To find the greatest common factor (GCF) of 42m - 28n, we need to determine the highest common factor that divides both terms evenly.
First, let's factor out any common factors from the two terms. Both terms have a factor of 14, so we can rewrite the expression as 14(3m - 2n).
Now, let's look at the expression 3m - 2n. Since there are no common factors between the two terms, we cannot simplify it further.
Therefore, the GCF of 42m - 28n is 14.
So, the correct answer is d. 14.