$4\left(1+m\right)\left(n-1\right)$

$\int\:\:csc^2\left(b-ax\right)dx$

$\int\frac{1}{\left(x-1\right)\left(2x+5\right)^2\left(3x-1\right)^2}dx$

$\left(2x^{2}\right)\left(3xy^{2}\right)$

$\lim_{x\to0}\left(\frac{x^6\ln\left(x\right)}{9x^3-9}\right)$

$-27-11+16+57+15-31$

$\left(4x+2\right)\left(4x+3\right)$