answer = 4x
12x^3 = [tex]12x^{3}[/tex]
16x^2 = [tex]16x^{2}[/tex]
20x = 20x
1) Find the GCF of the coefficients, Which are 12, 16, and 20.
-List the factors of each coefficient
2)Find the GCF of the variable parts:
3)Find the GCF of the variable parts
4)Combine the results