What should be added
2x ^3+ 3x^2+8x-4
to get 0 ?

-2x^3 - 3x^2 -8x + 4 should be added

Step-by-step explanation:

Here, we want to know what should be added to the expression to get 0

What we should do in this case is to simply negate the values we have in the expression already

Adding the negated values will give 0

So, we have that;

-2x^3 - 3x^2 -8x + 4

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled