Ex 2.5, 2 Evaluate the following products without multiplying directly: (ii) 95 96 95 96 = (100 5) (100 4) Using Identity (x + a) (x + b) = x2 + (a + b)x + ab, where x = 100 , a = 5, b = 4 , = (100)2 + ( 5 4) 100 + ( 5) ( 4) = 10000 + ( 9)(100) + 20 = 10000 900 + 20 = 9120

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Davneet Singh

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.

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