$\int\left(2x\left(x^2-7\right)\right)dx$

$\left(-5x^4+2x^3-6x^2+x-1\right)x\left(2x^2-3\right)$

$csc^{-1}\left(t\right)-4\cot^{-1}\left(t\right)$

$\left(3\cdot3^2\right)^3$

$\frac{3x-8}{2}=5$

$\ln\left(x\right)+\ln\left(y\right)-m\ln\left(z\right)$

$\lim_{n\to\infty}\left(\frac{n}{e^n+3n}\right)$