$\int\frac{1}{\left(x^2+4\right)\left(x+2\right)\left(x^2+1\right)}dx$

$\frac{d}{dx}\left(34\cdot e^{5x-2}\right)$

$( y ^ { 3 } + 10 y ^ { 2 } ) + ( 5 y )$

$y^2-5y+6.25$

$\lim_{x\to0}\:\frac{ln\left(x^2+11x\right)}{lnx}$

$\int\frac{t^2+2}{t^2}dx$

$\lim_{x\to0}\left(\sqrt{3x}\ln\left(x\right)\right)$