Factorize
(I) x^2 +12x+20
(ii) 6x^2-5xy-6y^2
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We have, 6x2 – 5xy – 6y2 The coefficient of x2 is 6 The coefficient of x is -5y Constant term is -6y2 So, we express the middle term -5xy as 4xy – 9xy 6x2 -5xy- 6y2 = 6x2 + 4xy – 9xy – 6y2 = 2x (3x + 2y) -3y (3x + 2y) = (2x – 3y) (3x + 2y)
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answer is in this attachment
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