$3x+8\le x+20$

$\left(-1400\right)-\left(-650\right)$

$35m^5-49^3$

$\left(m^{4}n^{3}\right)^{5}\left(m^{5}n^{2}\right)^{3}$

$\int\left(\sqrt{x}+\sqrt[3]{x}+\sqrt[4]{x}+3x\right)dx$

$\int\left(2x^4-1\right)^5\left(8x^3\right)dx$

$\lim_{x\to\infty}\left(\frac{1}{\log\left(\log\left(x\right)\right)}\right)$