Factorise: $13 x^{2} y - 65 x y^{2}$

x y (x - y)

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65 x y (x - y)

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13 x y (x - 5 y)

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13 x y (x - y)

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Solution

The correct option is D $13 x y (x - 5 y)$
$13 x^{2} y - 65 x y^{2} = (13 \times x \times x \times y) - (13 \times y \times x \times y \times y)$
$= 13 x y (x - 5 y)$

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