Simplify (9 - √3) (9 + √3) - Rationalisation [with Video] - Teachoo

  1. Chapter 1 Class 9 Number Systems (Term 1)
  2. Concept wise

Transcript

Simplify (9−√3)(9+√3) (9−√3)(9+√3) = (9)^2−(√3)^2 = 81 − 3 = 78

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.