$\frac{3x^3-x^2-3x-1}{x+1}$

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

$\frac{dy}{dx}=-\frac{5}{\left(2\sqrt{3-5x}\right)}$

$\frac{2x+1}{x+3}-1=\frac{2x}{x+2}$

$\int\left(\frac{x^3}{\sqrt[5]{x^4-16}}\right)dx$

$\sqrt[3]{\sqrt[3]{\sqrt[3]{a}}}$

$-8x^3+14x^2-16x-28$