$x^2-2\le0$

$\frac{dy}{dx}\left(5y-2x+y^3-x^2y=\ln\left(xy\right)\right)$

$\left(2y^3\right)^4\left(y^2\right)^2$

$\lim_{x\to-\infty}\left(\frac{-x}{\left(4+x^2\right)^{\frac{1}{2}}}\right)$

$( a ^ { x - 2 } - 5 ) ^ { 2 }$

$\int5^t\cdot t^6dt$

$\frac{dy}{dx}=\sec\left(\frac{y}{x}\right)+\left(\frac{y}{x}\right)$