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Example 16 - Chapter 2 Class 9 Polynomials - Part 2

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Example 16 Find the following products using appropriate identities: (ii) (x 3) (x + 5) (x 3) (x + 5) Using (x + a) (x + b) = x2 + (a + b)x + ab, putting a = 3, b = 5 = x2 + ( 3 + 5)x + ( 3)(5) = x2 + 2x 15

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.