Question

How do you evaluate `2(n)^2 + 1` if n = 5?

Answer 1

Substitute `5` for `n` and evaluate the expression using the order of operations to find

`2n^2+1 = 51` for `n=5`

Explanation:

Plugging in `5` for `n` and following the order of operations (exponents before multiplication before addition):

`2(5)^2 + 1 = 2(25)+1`

`= 50+1`

`= 51`