Respuesta :

caitlynreilly

Answer:

The GCF of 3x^4, 15x^3 and 21x is 3x^2

Step-by-step explanation:

3x^2(x^2), 3x^2(5x) , 3x^2(7)

Answer:

3

Step-by-step explanation:

3*4=12

15*3=45

21x= 7*3*x