Factorise : $x^{2} + x y - 3 x - 3 y$

(x y + y) (x - 3)

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(x - y) (x - 2)

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(x + y) (x - 3)

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(x - y) (x - 8)

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Solution

The correct option is C $(x + y) (x - 3)$
$x^{2} + x y - 3 x - 3 y$
$= x (x + y) - 3 (x + y)$
$= (x + y) (x - 3)$

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