Question

x(x-y)^2+3x^2y(x-y) factorise
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Answer 1

Answer:

$x(x - y)^{2} + 3 {x}^{2} y(x - y)$

take

$(x - y)$

as common.

get the factorisation

=

$(x - y)( {x}^{2} - xy - 3 \times {x}^{2} y)$