Question

factorise 2x square + 5x -12

Answer 1

2x²+5x -12
= 2x²+ 8x -3x -12
= 2x(x+4) -3(x+4)
= (x+4)(2x-3).
Hope it help
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Answer 2

$2x ^{2} + 5x - 12 \\ 2x ^{2} + 8x - 3x - 12 \\ 2x(x + 4) - 3(x + 4) \\ (2x - 3)(x + 4)$