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25 March, 01:56

Factorise

1) 3x^2 + 5x - 12

2) 6x^2 + x - 12

3) 14x^2 - x - 3

+2
Answers (1)
  1. 25 March, 02:53
    0
    1. = 3x^2 - 4x + 9x - 12

    = (3x^2 - 4x) + (9x - 12)

    = x (3x - 4) + 3 (3x - 4)

    = (x+3) (3x - 4) answer.

    2.
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