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20 and -20

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Bobby Witting

Lvl 10
2y ago
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Wiki User

7y ago

The square root of 400 is 20.

20 times 20 is 400.

* * * * *

-20 is also a square root of 400.

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Wiki User

13y ago

20i, where "i" is the imaginary unit.

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Adalgise Sena

Lvl 2
2y ago

The answer is 20 because 20 x 20 is 400

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Q: What is the square root of 400?
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