Question 33760
(w-9)^2 
Rewrite as: (w-9)(w-9)

To evaluate this expression, you will apply FOIL (multiplying First, Outside, Inside, and Last terms in the expression and then adding them together.

F: w*w
O: w * -9
I: -9 * w
L: -9 * -9


w*w + w * -9 + -9 * w + -9 * -9
w^2 + -9w + -9w + 81
w^2 - 18w + 81