$\int\left(\frac{\left(5+\sqrt{x}\right)}{\sqrt{x}}\right)dx$

$\frac{8x^2-2x}{2x}$

$\lim_{x\to\infty}\frac{\sqrt[2]{b^2-x}\:+\sqrt[2]{b^2-a}}{x-a}$

$\log x=2$

$\frac{3x^4-35x^2-9x+452}{x+3}$

$\int\frac{3x^2-3x+6}{x^3-8}dx$

$\left(\frac{4\cdot243\cdot4^2}{144}\right)$