$\int\frac{2x^2-2x+3}{\left(x^2+2\right)^2}dx$

$-26\:-\:\left(-34\right)\:+54$

$\frac{dy}{dx}=_{\left(x+1\right)^2}$

$y=\frac{1}{3}x^3-\frac{1}{2}x^2-6x$

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

$f\left(x\right)=\frac{1}{\left(1+\sec x\right)^2}$

$\sqrt[12]{2^6}$