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4.4721359549995793928183473374626 and -4.4721359549995793928183473374626

The cube root of 400 is also equal to the square root of 20. (IIRC)

Another way to approach it:

√(20)=√(4x5)

=2√(5)

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14y ago

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Q: What is equal to the square root of 20?
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