Ex 5.2, 1 (v) - Chapter 5 Class 8 Squares and Square Roots

Last updated at Dec. 16, 2024 by

Ex 5.2, 1 - Find square of 42 without actual multiplication - Maths - Ex 5.2

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Ex 5.2, 1 Find the square of the following numbers. (v) 71We know that 71 = 70 + 1 Now, 712 = 71 × 71 = (70 + 1) × (70 + 1) = (70 + 1)2 = 702 + 12 + 2 × 70 × 1 = 4900 + 1 + 140 = 5041

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo