Mathematics
Factorise the following:
4x3y - 44x2y + 112xy
Factorisation
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Answer
4x3y - 44x2y + 112xy = 4xy(x2 - 11x + 28)
= 4xy(x2 - 7x - 4x + 28)
= 4xy[x(x - 7) - 4(x - 7)]
= 4xy(x - 7)(x - 4).
Hence, 4x3y - 44x2y + 112xy = 4xy(x - 7)(x - 4).
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