Question

-x2y-x+3xy+3
Factorise
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Answer 1

Answer:

$- {x}^{2} y - x + 3xy + 3 \\ = - {x}^{2} y + 3xy - x + 3 \\ = - xy(x - 3) - 1(x - 3) \\ = ( - xy - 1)(x - 3)$