Question

what is the sum of the polynomials?

\\((m + n + 3) + (m + n + 4)\\)

-1

\\(m^2 + n^2 + 7\\)

\\(2m + 2n + 7\\)

\\(2m^2 + 2n^2 + 7\\)

Explanation:

⚡ Using what you learned: adding and subtracting polynomials

Step 1: Group like terms

$$ (m + n + 3) + (m + n + 4) = (m + m) + (n + n) + (3 + 4) $$

Step 2: Combine like terms

$$ 2m + 2n + 7 $$

Answer:

\(2m + 2n + 7\)