Mathematics
Factorisation of x2 - 4x - 12 is
(x + 6)(x - 2)
(x - 6)(x + 2)
(x - 6)(x - 2)
(x + 6)(x + 2)
Factorisation
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Answer
x2 - 4x - 12 = x2 - 6x + 2x - 12
= x(x - 6) + 2(x - 6)
= (x - 6)(x + 2).
Hence, Option 2 is the correct option.
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