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Example 9 - Factorise x^2 + 5x + 6 - Chapter 14 Class 9 Factorisation

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Transcript

Example 9 Factorise 𝑥^2 + 5x + 6 𝑥^2 + 5x + 6 By middle term splitting = 𝑥^2+2𝑥+3𝑥+6 Both have x as common factor Both have 3 as common factor = x (x + 2) + 3 (x + 2) Taking (x + 2) common = (x + 2) (x + 3) Splitting the middle term We need to find two numbers such that Sum = 5 Product = 6 So, we write 5x = 2x + 3x

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.