$m=\frac{2a^2+ab^2}{ab}$

$\int_0^{\infty}\left(\frac{4}{17+x}\right)dx$

$16x^4y^3z^2-20x^3y^2z^2-36x^2y^2z$

$\frac{sec}{cos}-tan^2x=1$

$\lim_{x\to0}\left(\frac{\tan\left(5x\right)\cdot\sin\left(x\right)}{x^2}\right)$

$\int_0^1\left(8\arctan\:\sqrt{x\:}\right)dx$

$\frac{x+13}{4}+4$