Question

which algebraic expression means \three more than a number squared\?
2n + 3
2n - 3
n² + 3
n² - 3

Explanation:

Step1: Define the number

Let the number be $n$.

Step2: Square the number

The square of the number $n$ is $n^{2}$.

Step3: Add three

"Three more than" the squared - number means we add 3 to $n^{2}$, so the expression is $n^{2}+3$.

Answer:

C. $n^{2}+3$