Find $\displaystyle \frac{dy}{dx}$ using implicit differentiation. $$\dfrac{3 x^2 + 6 y}{3 x + 8 y^2} = 29$$

Hint: First clear the denominator to get $3 x^2 + 6 y = 29(3 x + 8 y^2)$.

$\dfrac{dy}{dx} =$