$\int\frac{1}{\left(x^2\sqrt{a^2-x^2}\right)}dx$

$\left(-6+17x\right)\left(6-17x\right)$

$0,25\:m+\frac{1}{\text{4}}m-2m$

$\lim_{x\to\infty}\left(\frac{2x^2-x+1}{3x+5}\right)$

$\lim_{x\to-1}\frac{x^4+2x^3+x^2}{x+1}$

$2\frac{\left(1\right)^3}{\left(2\right)}$

$y^2\frac{dy}{dx}=\:e^{2x+y}$