NCERT Solutions for Class 9 Maths Chapter 1
Important NCERT Questions
Number Systems
NCERT Books for Session 2022-2023
CBSE Board and UP Board Others state Board
EXERCISE 1.5
Page No:24
Questions No: 2 Part:2
Simplify each of the following expression: (3 + √3) (3 – √3)
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(ii) (3 + √3)(3 – √3) = 3² – (√3)² [∵ (a + b)(a – b) = a² – b²] = 9 – 3 = 6