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

Transcript

Example 1 Factorise 12๐‘Ž^2b + 15ใ€–๐‘Ž๐‘ใ€—^2 12a^2b + 15ab^2 12a^2b = 12 ร— a^2b = 2 ร— 2 ร— 3 ร— a^2b = 2 ร— 2 ร— 3 ร— a ร— a ร— b 15ab^2 = 15 ร— ab^2 = 3 ร— 5 ร— ab^2 = 3 ร— 5 ร— a ร— b ร— b Now, 12ab^2 = 2 ร— 2 ร— 3 ร— a ร— a ร— b 15ab^2 = 3 ร— 5 ร— a ร— b ร— b So, 3, a, b are common factors. 12ab^2 + 15ab^2 = 2 ร— 2 ร— 3 ร— a ร— a ร— b + 3 ร— 5 ร— a ร— b ร— b = 3 ร— a ร— b (2 ร— 2 ร— a + 5 ร— b) = 3ab (4a + 5b)

About the Author

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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.