$\frac{600}{-20}$

$\int\left(3+\tan\left(4x\right)\right)^2dx$

$\frac{2x^3-x^2-9x+4}{x-2}$

$\int\frac{4x^{5}+2x^{3}-24x^{2}+18x}{x^{2}-3x}dx$

$3-\left[4-\left(5-7\right)\right]\left\{9-\left[5-\left(-4\right)\right]\right\}$

$4sin^2\left(x\right)x\frac{1}{sin^2x}-4sin^2x$

$\lim_{x\to0}\left(\sqrt{8x}\ln\left(x\right)\right)$