SOLUTION: If each side of a square is enlarged three times, by how many times is it's area increased?

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Question 937478: If each side of a square is enlarged three times, by how many times is it's area increased?
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
original area:
a = xx
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expanded area:
b = (3x)(3x)
b = 9xx
---
b/a = 9xx/xx
b/a = 9
---
answer:
9 times
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