Question 33760: Can you please help me solve (w-9)^2
These kind of problems are a little complicated to me and I need your help in solving and showing my work.
Answer by kietra(57)   (Show Source):
You can put this solution on YOUR website! (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
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