$\int\frac{1}{25+\left(x-3\right)^2}dx$

$\int_{-\infty}^0\left(\frac{ax^5}{\left(x^2+a^2\right)^{\frac{3}{2}}}\right)dx$

$\left(n^2+2\right)\left(n^3\right)$

$x^2-11x+-21$

$x^2-10=474$

$\lim_{x\to0}\left(\frac{x^2+sin\left(x\right)}{x^2-sin\left(x\right)}\right)$

$\frac{1}{n}\left(x-1\right)^n$