Factorise the following:
(i) 6x² + 5x - 6
(ii) 3x² - x - 4
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Answer:
(i) 6x² + 5x - 6
= 6x² + 9x - 4x - 6
= 3x (2x + 3) - 2(2x +3)
= (3x -2) (2x + 3)
(ii) 3x² - x - 4
= 3x² - 4x + 3x - 4
= x (3x - 4) + 1(3x - 4)
= (x + 1)(3x -4)
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