$5 x y + 25 y + 3 x + 15$ is factorised as

(5 y + 3) (x + 5)

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(y + 3) (5 x + 25)

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(y - 3) (x - 5)

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Solution

The correct option is A $(5 y + 3) (x + 5)$
Take the first two and last two terms:
$(5 x y + 25 y) + (3 x + 15)$
$= 5 y (x + 5) + 3 (x + 5)$
$= (5 y + 3) (x + 5)$

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