Ex 14.2, 1 (i) - Factorise (i) a^2 + 8a + 16 - Ex 14.2

  1. Chapter 14 Class 8 Factorisation
  2. Serial order wise

Transcript

Ex 14.2, 1 Factorise the following expressions. (i) ๐‘Ž^2 + 8a + 16 a^2 + 8a + 16 =ใ€– ๐‘Žใ€—^2 + 8a + 4^2 =ใ€– ๐‘Žใ€—^2 + (2 ร— a ร— 4) + 4^2 = ใ€– ๐‘Žใ€—^2 + 4^2 + (2 ร— a ร— 4) = ใ€–(๐’‚+๐Ÿ’)ใ€—^๐Ÿ Using (๐‘ฅ+๐‘ฆ^2)=๐‘ฅ^2+๐‘ฆ^2+2๐‘ฅ๐‘ฆ Here, ๐‘ฅ = a and y = 4 = ใ€–(๐’‚+๐Ÿ’)ใ€—^๐Ÿ

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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.