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Ex 14.2, 1 (i) - Factorise (i) a^2 + 8a + 16 - Ex 14.2

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Ex 14.2, 1 Factorise the following expressions. (i) 𝑎^2 + 8a + 16 a^2 + 8a + 16 =〖 𝑎〗^2 + 8a + 4^2 =〖 𝑎〗^2 + (2 × a × 4) + 4^2 = 〖 𝑎〗^2 + 4^2 + (2 × a × 4) = 〖(𝒂+𝟒)〗^𝟐 Using (𝑥+𝑦^2)=𝑥^2+𝑦^2+2𝑥𝑦 Here, 𝑥 = a and y = 4 = 〖(𝒂+𝟒)〗^𝟐

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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.