$\left[\left(n+2\right)\left(n-2\right)\left(n^2-4\right)\right]^3$

$y'+\left(\frac{3}{x}-\frac{x}{2}\right)y=-\frac{1}{2x^2}$

$2\left(-2-6\right)-7+4\left(8-1\right)$

$2\sec^2x-\sec^4x$

$4\sqrt[2]{20x^4}y^5$

$\lim_{x\to\infty}\left(\frac{ln\left(5x+3\right)}{ln\left(2x+10\right)}\right)$

$1x^3+3x^2+3x+2\cdot x^2-2x-1$