$\left(x+1\:\right)^2.\left(x-3\right)^2.10+4x$

$\int\left(x^3+11x^2+4\right)e^{6x}dx$

$\frac{1}{9}x^2\:+\:\frac{1}{3}x\:+\:\frac{1}{2}$

$\frac{d}{dx}x\:sin\:\frac{4}{x}$

$\frac{1}{2}x-\left\{0,5-\left[0,25x-\left(\frac{1}{4}+x\right)\right]\right\}$

$f\:\left(x\right)=\left(2x^2+3\right)^x\:.\left(3x\right)^{2x}$

$\lim_{x\to\pi}\left(\frac{7cosx+7}{\left(x-\pi^2\right)}\right)$