Mathematics
Factorise the following:
3x2y - 3xy + 12x - 12.
Factorisation
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Answer
3x2y - 3xy + 12x - 12.
= 3(x2y - xy + 4x - 4)
= 3[xy(x - 1) + 4(x - 1)]
= 3(x - 1)(xy + 4)
Hence, 3x2y - 3xy + 12x - 12 = 3(x - 1)(xy + 4).
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