1. Factor the polynomial by factoring out the Greatest common Factor (GCF): 3n^2– 6 + 9n
A. 3(n^2+ 3n - 2)
B. 3n(n^2 + 3n - 2)
C. 3(n^2– 3n+2)
D. n(n^2 +3n - 2)
