Jeremy

Hallo mein heiße ist Jeremy
$f(x)={\sqrt[{3}]{\frac {4x^{3}+9y_{4}^{3}}{x}}}$
$g(x)={\sqrt[{-5}]{3x^{9}-7}}$
$(f+g)(x)={\sqrt[{3}]{\frac {4x^{3}+9y_{4}^{3}}{x}}}+{\sqrt[{-5}]{3x^{9}-7}}$

Failed to parse (Conversion error. Server ("https://en.wikipedia.org/api/rest_") reported: "Cannot get mml. Server problem."): {\displaystyle {\frac {d}{dx}}({\frac {f}{g}})={\frac {f'\cdot g-g'f}{g^{2}}}}