Answer:
the answer is: 6n^2+6n-3
Step-by-step explanation:
We need to solve:
5n^2 + 2n + 3
+ n^2 + 4n - 6
For solving this, we need to add the like terms.
Like terms are those terms that have same variables and exponents.
So, Adding like terms we get,
5n^2 + 2n + 3
+ n^2 + 4n - 6
___________
6n^2+6n-3
So, the answer is: 6n^2+6n-3
