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The online roots calculator could help you find roots of positive and negative real numbers. For instance, input root of number 9 in the left box, and the degree of the root 2 in the left box. Click the "=" or "Calculate" buttion, you will get ± 3.

For example:

• 2 is a square root of 4, since 2² = 4.
• -2 is also a square root of 4, since (-2)² = 4.

You can also see the below calculator