Question

3x2-x-4 factorise it..

Answer 1

$= {3x}^{2} - x - 4 \\ = {3x}^{2} + 3x - 4x - 4 \\ = 3x( x + 1) - 4(x + 1) \\ = (x + 1)(3x - 4)$

values of x = -1,4/3..

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Answer 2

Answer

values of x = -1,4/3..