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Ex 14.2, 1 (iii) - Factorise 25m^2 + 30m + 9 - Ex 14.2

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Ex 14.2, 1 Factorise the following expressions. (iii) 25𝑚^2 + 30m + 9 25𝑚^2 + 30m + 9 = 〖(5𝑚)〗^2+ 30𝑚+3^2 = 〖(5𝑚)〗^2+ (2×5𝑚×3)+3^2 = 〖(5𝑚)〗^2+ 3^2+(2×5𝑚×3) Using (𝑎+𝑏^2 )=𝑎^2+𝑏^2+2𝑎𝑏 Here, 𝑎 = 5m and b = 3 = 〖(𝟓𝒎+𝟑)〗^𝟐

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