$x\left(x^2-3x+1\right)$

$sin2xcosx+cos2xsinx=\frac{\sqrt{2}}{2}$

$\int\:\frac{\sqrt{x}+\sqrt{y}}{\sqrt{x}}dx$

$\lim_{x\to-\infty}\left(\frac{ln\left(2-x\right)}{\sqrt{2-x}}\right)$

$\frac{dy}{dx}\left(\frac{x}{y}+\frac{y}{x}=3\right)$

$\frac{8x^6-64}{2x^2-4}$

$\left(2x^4+3y^2-1\right)\left(5x^3+6x\right)$