Mark (✓) against the correct answer:
7x2 − 19x − 6 = ?
(a) (x − 3)(7x + 2)
(b) (x + 3)(7x − 2)
(c) (x − 3)(7x − 2)
(d) (7x − 3)(x + 2)
$7 x^{2}-19 x-6$
$=7 x^{2}-21 x+2 x-6$
$=7 x(x-3)+2(x-3)$
$=(x-3)(7 x+2)$
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