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irrational

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Kieran Crist

Lvl 10
2y ago
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13y ago

The square root of 28 is the same as the 2 x the square root of 7.

7 is prime, and so the square root of 7 is irrational. Thus the square root of 28 is irrational.

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Q: Is the square root of 28 irrational or rational?
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