SOLUTION: How do I do this question? "Expand (4a)^2 - (2a)^2 and simplify you answer as far as possible"?

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Question 644192: How do I do this question?
"Expand (4a)^2 - (2a)^2 and simplify you answer as far as possible"?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
"Expand (4a)^2 - (2a)^2 and simplify you answer as far as possible"?
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(4a)^2 - (2a)^2 = 16a^2 - 4a^2
= 12a^2