$\frac{dy}{dx}=x^2-2-\left(\frac{2}{x}\right)y$

$35n-1+46$

$\frac{2x^3-4x^2-2x+3}{-3}$

$\int\left(4x^2e^{-x^3}\right)dx$

$\left(1-\cos x\right)\left(1+\cos\left(x\right)\right)=1-\cos^2\left(x\right)$

$\int\frac{4+9x+3x^2}{\left(x+1\right)\left(1+x^2\right)}dx$

$\left(3n^4+5\right)^2$