Question

Factorise using identity 2x^2 + 5x -12

Answer 1

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Factorise using identity 2x^2 + 5x -12

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$2 {x}^{2} + 5x - 12 = 0$

$2 {x}^{2} + 8x - 3x - 12 = 0$

$2x(x + 4) - 3(x + 4)$

$(2x - 3)(x + 4)$

$x = \frac{3}{2} \: and \: x = - 4$

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