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Mathematics

Radicals & Roots

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Pro Tip

To simplify a radical: find the largest perfect square factor. √200 = √(100×2) = 10√2 is simpler than √(4×50) = 2√50 — always use the LARGEST perfect square factor.

Difficulty:Intermediate

Did you know?

The ancient Greeks were disturbed by irrational numbers like √2 = 1.41421356... (non-repeating, non-terminating). The Pythagorean school allegedly drowned Hippasus for proving √2 couldn't be expressed as a fraction — though this story is probably legend.

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Reviewed May 2026
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