Respuesta :

mathstudent55

Answer:

9x^3 - 3x + 3

Step-by-step explanation:

(4x^3 + 3x + 1) - (-5x^3 + 6x - 2) =

= 4x^3 + 3x + 1 + 5x^3 - 6x + 2

= 9x^3 - 3x + 3

delilahvera

Answer:

9x^(3)-3x+3

Step-by-step explanation: