$x^2+10x+39=23$

$x^{2}ydx-\left(x^{3}+y^{3}\right)dy=0$

$-2x^2+30x+20$

$\left(m^3+3m^2n+2mn^2\right).\left(m^2-2mn-8n^2\right)$

$\int\left(\sin\:\left(x+\frac{\pi\:\:}{4}\right)\csc\:\left(x\right)\sec\:\left(x\right)\right)dx$

$\left(9\right)\left(-4\right)+\left(-6\right)$

$-x^2-12x-50$