Respuesta :

mathstudent55
(12x^2 - 11y^2 - 13x) - (5x^2 - 14y^2 - 9x) =

= 12x^2 - 11y^2 - 13x - 5x^2 + 14y^2 + 9x

= 12x^2 - 5x^2 - 11y^2 + 14y^2 - 13x + 9x

= 7x^2 + 3y^2 - 4x

Answer:

has to be option A

Step-by-step explanation:

Just tried in edg