Factory 12 p+36q-42r using GCF

To factor the expression 12p + 36q - 42r using the greatest common factor (GCF), we first need to find the GCF of the coefficients 12, 36, and 42. The GCF of these numbers is 6.

Now let's factor out 6 from each term:

= 6(2p + 6q - 7r)

Therefore, the expression 12p + 36q - 42r can be factored as 6(2p + 6q - 7r).