Respuesta :

wegnerkolmp2741o

Answer:

3a^3 -2

Step-by-step explanation:

(4a^3-2a+1)-(a^3-2a+3)

Distribute the minus sign

(4a^3-2a+1)-a^3+2a-3

Line up the terms vertically

(4a^3-2a+1)

-a^3+2a -3

------------------

3a^3 +0a -2

3a^3 -2