Respuesta :

The given expressions are

[tex]7x^2y,x^2y^2,21x^4y^2[/tex]

We have to find the greatest common factor of the coefficients and variables.

The Greatest Common Factor between coefficients is 7 because that's the highest factor that's common.

The Greatest Common Factor between variables is

[tex]x^2y[/tex]

Hence, the GCF is

[tex]7x^2y[/tex]