Question

48x^ 4-72x^6 y^2/-12x^2y


I hope I even wrote it correctly

Answer 1

I guess you mean:

(48x^4-72x^6y^2)/(-12x^2y)

So the greatest common factor is -12x^2

(-4x^2+6x^4y^2)/y which we can also write as:

(6x^4y^2-4x^2)/y