One of the factor of the polynomial $x y + 3 b x + 2 a y + 6 a b$ is

3 b - y

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y + 3 b

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x + a

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2 x + a

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Solution

The correct option is B $y + 3 b$
$x y + 3 b x + 2 a y + 6 a b$

= $x (y + 3 b) + 2 a (y + 3 b)$

= $(x + 2 a) (y + 3 b)$

So one of the roots in option is $y + 3 b$

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Similar questions

x = \frac{\sqrt{a + 3 b} + \sqrt{a - 3 b}}{\sqrt{a + 3 b} - \sqrt{a - 3 b}}

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