SOLUTION: IS the following binomial a difference of squares? 9a^2 - 8b^2 Thank You!

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Question 48501: IS the following binomial a difference of squares?
9a^2 - 8b^2

Thank You!
Answer by AnlytcPhil(1806)   (Show Source): You can put this solution on YOUR website!
IS the following binomial a difference of squares?

9a² - 8b²

No because 8 is not a perfect square.

Edwin
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PS:
Note that if the 8 had been, say a 4, and it had been

9a² - 4b²

instead, then it could have been written as

(3a)² - (2b)²

and then it would have been a difference of squares.

But with the 8 it is not.
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