Junior Cycle · Number Theory Lesson 5 of 5

JCHL Number Theory 5: Surds

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You’ll learn

  • Know the square numbers (4, 9, 16, 25, 36, …) — they make surds simpler
  • To simplify a surd: split it using the LARGEST square number that divides in, then square-root that part
  • To multiply surds: multiply the numbers outside together, and the numbers inside the roots together

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