Ex 6.2, 1 - Chapter 6 Class 8 Squares and Square Roots - Part 3

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  1. Chapter 6 Class 8 Squares and Square Roots
  2. Serial order wise

Transcript

Ex 6.2, 1 Find the square of the following numbers. (iii) 86We know that 86 = 80 + 6 Now, 862 = 86 × 86 = (80 + 6) × (80 + 6) = 80 × (80 + 6) + 6 × (80 + 6) = 80 × 80 + 80 × 6 + (6 × 80) + 6 × 6 = 6400 + 480 + 480 + 36 = 7396

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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.