Question

fill in the blank with a number to make the expression a perfect square
$w^2 - 16w + \square$

Explanation:

Step1: Identify linear term coefficient

The linear term is $-16w$, so its coefficient is $-16$.

Step2: Half the coefficient

$\frac{-16}{2} = -8$

Step3: Square the result

$(-8)^2 = 64$

Answer:

64