Respuesta :

renknee

Answer:

-6y^3 + 14x^2 + 4

Step-by-step explanation:

  • [tex]5x^2 + 7x^2 - 7y^3 + y^3 + 4 + 2x^2[/tex]
  • [tex](-7y^3 + y^3) + (5x^2 +7x^2 + 2x^2) + (4)[/tex]
  • [tex]-6y^3 +14x^2+4[/tex]