Respuesta :

[tex](21x^3y^4-7x^2y^3+14x^2y^2-xy) \div (7x^2y^2)[/tex]

[tex]\dfrac{21x^3y^4}{7x^2y^2} - \dfrac{7x^2y^3}{7x^2y^2} - \dfrac{14x^2y^2}{7x^2y^2} - \dfrac{xy}{7x^2y^2}[/tex]

[tex]3xy^2 - y - 2 - \dfrac{1}{7xy} [/tex]