$n^2-3n+28=0$

$169x^2+260xy+44x$

$\left(3a-4b^2c^3\right)\left(3a-4b^2c^3\right)$

$\int\sqrt{2+3x-x^2}dx$

$\int\left(x\ln\left(x\right)-x\right)^2dx$

$\lim_{x\to0}\left(\frac{2\left(\cot\left(2x\right)\right)}{\cot\left(x\right)}\right)$

$-\left(-3\right)+\left\{\left(-5\right)-\left[+8+\left(-10\right)\right]\right\}$