Factorise 2×2 + 13xy – 24y2

(i) 2x2 + 13xy – 24y2

(ii) 6x2 – 5xy – 6y2

Answer :

(i) 2x2 + 13xy – 24y2

2x2 + 16xy – 3xy – 24y2

Take out common in all terms we get,

2x(x + 8y) – 3y(x + 8y)

(x + 8y) (2x – 3y)

(ii) 6x2 – 5xy – 6y2

6x2 – 5xy – 6y2

6x2 – 9xy + 4xy – 6y2

Take out common in all terms we get,

3x(2x – 3y) + 2y (2x – 3y)

(2x – 3y) (3x + 2y)

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