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Square Roots Without a Calculator

Algebra Level 2

\(\sqrt{20*21*22*23 + 1} = \ ? \)

NSF Math BEE Finals

459 449 441 461

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Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

Used and loved by over 7 million people

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.

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by Rmflute Shrivastav

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