Respuesta :

Alfpfeu

Answer:

answer C

Step-by-step explanation:

[tex]3x^2-4x-8 + (6x^2+2x-3) = 3x^2-4x-8+6x^2+2x-3=9x^2-2x-11[/tex]

so the correct answer is the C

hope this helps

ujalakhan18

Answer:

C.

Step-by-step explanation:

= 3x²-4x-8+6x²+2x-3

= 3x²+6x²-4x+2x-8-3

= 9x²-2x-11