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Example 5 - Factorise 4y^2 - 12y + 9 - Chapter 14 Class 9 Factorisatio

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Example 5 Factorise 4𝑦^2 – 12y + 9 4𝑦^2 – 12y + 9 = γ€–(2𝑦)γ€—^2 βˆ’ 12𝑦+(3)^2 = γ€–(2𝑦)γ€—^2 βˆ’ 2Γ—2𝑦×3 +(3)^2 = γ€–(2𝑦)γ€—^2+ (3)^2 βˆ’2Γ—2𝑦×3 Using (π‘Žβˆ’π‘)^2 = π‘Ž^2+𝑏^2βˆ’2π‘Žπ‘ Here π‘Ž=2𝑦, 𝑏=3 = (γ€–πŸπ’šβˆ’πŸ‘)γ€—^𝟐

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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.