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:3
Simplify each of the following expressions: (√5 + √2)²
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(iii) (√5 + √2)² = (√5)² + (√2)² + 2 × √5 × √2 = 7 + 2√10 [∵ (a + b)² = a² + b² + 2ab]