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  1. Chapter 14 Class 8 Factorisation
  2. Concept wise

Transcript

Example 8 Factorise ๐‘š^4 โ€“ 256 ๐‘š^4 โ€“ 256 = (๐‘š^2 )^2 โˆ’ ใ€–(16)ใ€—^2 Using ๐‘Ž^2 โˆ’ ๐‘^2 = (a + b) (a โˆ’ b) Here ๐‘Ž=๐‘š^2 and b = 16 = (๐‘š^2+16) (๐‘š^2โˆ’16) = (๐‘š^2+16) (๐‘š^2 โˆ’ 4^2 ) Using ๐‘Ž^2 โˆ’ ๐‘^2 = (a + b) (a โˆ’ b) Here ๐‘Ž=๐‘š and b = 4 = (๐‘š^2+16) (๐‘š+4) (๐‘š โˆ’ 4) = (๐’Ž โˆ’ ๐Ÿ’) (๐’Ž+๐Ÿ’) (๐’Ž^๐Ÿ+๐Ÿ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 9 years. He provides courses for Maths and Science at Teachoo.