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I am pretty sure that the cube root of negative seven is a surd. I checked on the calculator.......and it showed a negative number.....??I think when it is not a surd...it's supposed to say error, so the number probably means that it is a surd..

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โˆ™ 2009-06-17 10:32:43
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Q: Cube root of 7 is a surd but is cube root of negative seven a surd?
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