7. 3x+12 I. 8. 2x² + 10x 1. 2. 3. e. 20, 30a 35, 20m 13a, 26b, 39c Practice and Application Determine the GCF of each set of monomials. 25x², 75x³, 125 12a², 15a³, 18a 15c4, 10c7, 40c + 4. 5. 6. +++++ +4+4+4+4 II. Two polynomials are relatively prin whind solution​