Respuesta :

Answer:

[tex]11x^{2} -8x - 14[/tex]

Step-by-step explanation:

[tex]2x^2 - 8x -6 + 9x^2-8\\= 2x^2+9x^2 -8x - 6-8\\= 11x^2 - 8x - 6 - 8\\= 11x^2 -8x - 14[/tex]