Use implicit differentiation to find dydx\displaystyle \frac{{\left.{d}{y}\right.}}{{{\left.{d}{x}\right.}}}.

y2+8x3=3y6x2\displaystyle {y}^{{2}}+{8}{x}^{{3}}={3}{y}-{6}{x}^{{2}}

dydx=\displaystyle \frac{{\left.{d}{y}\right.}}{{{\left.{d}{x}\right.}}}=