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A perfect square is a rational number that is equal to the square of another rational number; 9 is a perfect square because it is a rational number that is the square of 3, another rational number.

A polynomial that is the square of another polynomial is also a perfect square; x2 - 8x + 16 is a perfect square because it is the square of the polynomial x - 4.

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โˆ™ 2012-02-01 18:39:26
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Q: What are facts about perfect square?
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Is 8 a perfect square?

8 is a perfect cube; it is not a perfect square. Its square root is a fraction and the square root of a perfect square is always an integer....you're thinking of 9...


Why is a perfect square the square of a whole number?

It is the definition of a perfect square.


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How do you check if a number is a perfect square?

For a number to be a perfect square, the number's square root has to be a whole number. 9 is a perfect square because its square root is a whole number, 3. If the square root of the number is a decimal, then it is not a perfect square. For example, 13 does not divide evenly so it not a perfect square.


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Is 125 a perfect square?


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No, 2 is neither a perfect square nor a perfect cube.


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