Question

Find the GCF of 42M -28N

Answer 1

[AI-generated answer — Bot GPT 3.5]

To find the greatest common factor (GCF) of 42M - 28N, we need to look for the largest factor that both 42M and -28N have in common.

First, let's factor out the common factors of 42M - 28N by finding the greatest common factor of 42 and -28.

The prime factorization of 42 is 2 * 3 * 7.
The prime factorization of -28 is -1 * 2 * 2 * 7.

Comparing the prime factorizations, we see that the common factors are 2 and 7.

Next, let's look at the variable factors, M and N. Since they do not have any common factors other than 1, we do not need to consider them when finding the GCF.

Therefore, the GCF of 42M - 28N is 2 * 7 = 14.