Question

How do I find the sum of this equation and express it in simplest form $( {n}^{3} - 5n - 2) + (4 {n}^{3} + n - 4)$

Answer 1

$(n^{3\text{ }}-5n-2)+(4n^3+n-4\text{)}$$\begin{gathered} \text{collect like terms} \\ n^3-5n-2+4n^3\text{ + n - 4} \\ n^3+4n^3\text{ - 5n + n - 2 - 4} \\ 5n^{3\text{ }}-\text{ 4n - 6} \\ \end{gathered}$