Question
Factorise:
$6 x^2-5 x-6$
$6 x^2-5 x-6$
✓
Answer
$6 x^2-5 x-6$
$=6 x^2-9 x+4 x-6$
$\{6 × (-6) = -36, -36 = -9 × 4, -5 = -9 + 4\}$
$= 3x(2x - 3) + 2(2x - 3)$
$ = (2x - 3)(3x + 2)$
$=6 x^2-9 x+4 x-6$
$\{6 × (-6) = -36, -36 = -9 × 4, -5 = -9 + 4\}$
$= 3x(2x - 3) + 2(2x - 3)$
$ = (2x - 3)(3x + 2)$
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