To answer this question, we need to take into account to sum the like terms in the polynomial. We can add both polynomials as follows:
As we can see, we order the polynomials in such a way that each of the like terms can be added to each other. We added the coefficients in this case:
8 + 1 = 9
-4 +2 = -2
4 + 6 = 10
Therefore, the result for this addition of polynomials is equal to: