$-16+\left(-18\:\right)-\left(-3\right)+\left(-4\right)+5+\left(-2\right)$

$\int\left(x^4\sqrt{3+x^5}\right)dx$

$3\left(2\right)^4+7$

$\int\frac{x^{2}-3x+5}{\sqrt{x}}dx$

$100^{t^2-0.5t}$

$\int x\left(2x+4\right)^2dx$

$\lim_{x\to\pi}\left(\frac{\sin\left(3x\right)}{\tan\left(9x\right)}\right)$