$\frac{9x^3+6x-3x}{2}$

$\lim_{x\to0}-\left(\frac{-3sin\left(x\right)}{6}\right)$

$y'=\frac{x^2}{1+y^2}$

$2\cdot9\cdot1$

$-8;\:-15;\:4;\:-1;\:3;\:1;\:-2;\:9;\:-\left(-2\right)$

$\frac{1}{3}\int x^{\frac{1}{2}}dx$

$\frac{d^2}{dx^2}\left(27\ln\left(7\right)x^2+27x^2ln\left(x\right)+9x^2\right)$