Respuesta :

Answer:

3xy^2

Step-by-step explanation:

-12 xxx yyyyy    -9 xx yy    + 12 x yyy

   -12,    -9,    12  have a greatest common factor of 3

(-4)(3), (-3)(3), (4)(3)

    xxx,      xx,         x     greatest common factor x

   yyyyy,     yy,    yyy     greatest common factor y^2

3xy^2