$-6\left(5-y\right)$

$\int\frac{1}{\cos\left(x\right)+\cot\left(x\right)}dx$

$2\left(3x+4\right)+3x<0$

$x^5-x^4-12x^3+36+13x^2-36$

$-\:7\:+\:\left[\:-\:4\:\left(\:-\:2\:-\:3\:\right)\:+\:5\:-\:\left(\:-\:10\:-\:2\right)\right]\:+\:15$

$\frac{dy}{dt}+\frac{y}{\left(t+1\right)}=ln\left(t\right)$

$\int\frac{1}{x^4}dx$