Question

Factorise :
$8x {}^{2} - 6x - 9$

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Answer 1

$8 {x}^{2} - 6x - 9 \\ \\ 8 {x}^{2} - 12x + 6x - 9 \\ \\ 4x(2x - 3) + 3(2x - 3) \\ \\ (4x + 3)(2x - 3)$

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