$\int\frac{4}{\left(\sqrt{x^2+16}\right)}dx$

$\sqrt{\frac{a+bx}{a-bx}}$

$\lim_{x\to\infty}\left(\ln\left(\tan\left(x\right)^{\tan\left(x\right)}\right)\right)$

$\frac{8}{27}a^6+\frac{1}{64}b^3$

$6x^2-16x-6$

$m^{-6}\cdot m^2\cdot m^4$

$\left(x+3y\right)\left(4a+4x\right)$