Respuesta :

lucic

Answer:

[tex]9x^3-2x-3[/tex]

Step-by-step explanation:

The question is

[tex](6x^3-8x-5)+(3x^3+6x+2)\\[/tex]

collect like terms

[tex](6x^3-8x-5)+(3x^3+6x+2)\\\\\\6x^3+3x^3-8x+6x-5+2\\\\\\9x^3-2x-3[/tex]