H (x) = x^2 + 1 k (x) = x - 2

(h + k) (2) = ?

First we will compute the h+k and then multiply the result by 2.

To add polynomials, we add terms whose variables are alike, for example:

we add the coefficients of x^2 together, the coefficients of x together and so on.

Therefore:

h + k = x^2 + 1 + x - 2 = x^2+x-1

Now, we will multiply this answer by 2 to get the final answer:

2 (h+k) = 2 (x^2+x-1) = 2x^2 + 2x - 2