$\int\left(\frac{\sqrt{x}+\sqrt[3]{8x^4}-2x+\sqrt[4]{x}}{x}\right)dx$

$\lim_{x\to1}\left(\frac{x}{1-x^2}\right)$

$\left(9n^4\right)^{\frac{1}{2}}$

$\left(2m+6\right)\left(2m-8\right)\left(4m^2-3m+1\right)$

$\log\left(x\left(x-3\right)\right)$

$18x^3+6x^2-36x-12$

$x^2dx+\left(y+1\right)^2dy=0$