Slide14.JPG

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

Transcript

Ex 14.2, 2 Factorise. (v) 〖"(l + m)" 〗^2– 〖"(l – m)" 〗^2 〖"(l + m)" 〗^2– 〖"(l – m)" 〗^2 Using 𝑎^2− 𝑏^2 = (a + b) (a − b) Here a = (l + m) and b = (l − m) = [("l" + m) + ("l" − m)] [("l" + m) − ("l "− m)] = ["l" + m + "l" − m] ["l" + m − "l" + m] = (2"l") (2m) = 2 × 2 × "l" × m = 4"l"m

About the Author

Davneet Singh's photo - Teacher, Computer Engineer, Marketer
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.