Question

$4xy {}^{3} - 8xy {}^{2} - 12xy \: \:factorise \: the \: following$
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Answer 1

Answer:

4xy^3-8xy^2-12xy

y(4xy^2-8xy-12x)

y(4xy^2-12xy+4xy-12x)

y{4xy(y-3)+4x(y-3)}

y(4xy+4x)(y-3)