simplify the following expression. (n - 12)^2 n^2+?n+

Explanation:

Step1: Apply the formula $(a - b)^2=a^{2}-2ab + b^{2}$

Here $a = n$ and $b = 12$, so $(n - 12)^2=n^{2}-2\times n\times12+12^{2}$

Step2: Simplify the middle - term and the constant term

$-2\times n\times12=-24n$ and $12^{2}=144$, so $(n - 12)^2=n^{2}-24n + 144$

Answer:

The first box is $- 24$, the second box is $144$