Find the implicit derivative $\frac{d}{dx}\left(c=ye^{-x}\right)$

Find the derivative

$\frac{d}{dx}\left(xy+2x+3x^2=4\right)$

Find the derivative

$\frac{d}{dx}\left(x^3-3x^2y+2xy^2=12\right)$

Find the derivative

$\frac{d}{dx}\left(x^2+xy-y^2=4\right)$

Find the derivative

$\frac{d}{dx}\left(x^2-xy+y^2=3\right)$

Find the derivative

$\frac{d}{dx}\left(x^3-xy+y^2=7\right)$

Find the derivative

$\frac{d}{dx}\left(2xy=1\right)$

Find the derivative

$\frac{d}{dx}\left(2x^3+x^2y-xy^3=2\right)$