Find the sum of
$4 x^{2} + 8 x y - 2 y^{2} a n d 6 y x + 6 y + 9 x^{2} ?$

13 x^{2} + 8 x y - 2 y^{2} + 6 y

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13 x^{2} + 14 x y - 6 y^{2}

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13 x^{2} + 14 x y - 2 y^{2} + 6 y

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13 x^{2} + 8 x y - 6 y^{2} + 2 y

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Solution

The correct option is C $13 x^{2} + 14 x y - 2 y^{2} + 6 y$
$4 x^{2} + 8 x y - 2 y^{2}$
$9 x^{2} + 6 x y + 0 y^{2} + 6 y$
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$13 x^{2} + 14 x y - 2 y^{2} + 6 y$

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