음함수 $x^3 + xy+2y^3 = 4$ 의 $y '' \left (1 \right)$ 은?

• ①$\displaystyle - \frac{430} {343}$
• ②$\displaystyle - \frac{428} {343}$
• ③$\displaystyle - \frac{426} {343}$
• ④$\displaystyle - \frac{424} {343}$
• ⑤$\displaystyle - \frac{422} {343}$