$\int xe^5dx$

$\left(9m-1\right)\left(9m-4\right)$

$\frac{2x^4+5x^2-7x+8}{x-3}$

$10<4-3\cdot$

$\frac{d}{dx}\left(y=\frac{1}{\left(t+4\right)\left(t+2\right)\left(t+9\right)}\right)$

$\lim_{x\to1}\left(\frac{x^3-1}{\ln\left(x\right)}\right)$

$\frac{d^2}{dx^2}\left(4x^2-12x-x^3\right)$