A number that can't be simplified to remove a square root (or cube root etc).

Examples:

• √2 (square root of 2) can't be simplified further so it is a surd

• √4 (square root of 4) CAN be simplified to 2, so it is NOT a surd

A number that can't be simplified to remove a square root (or cube root etc).

Examples:

• √2 (square root of 2) can't be simplified further so it is a surd

• √4 (square root of 4) CAN be simplified to 2, so it is NOT a surd

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