$x^2+x+225$

$18x^3-12x^2+8x$

$2a^{\left(3\right)}b^{\left(3\right)}\left(a^{\left(4\right)}x^{\left(2\right)}-7b^{\left(3\right)}y^{\left(5\right)}\right)$

$\frac{dy}{dx}\left(xy^3+2xy^2=0\right)$

$\frac{dy}{dx}\left(y=\left(4x+1\right)^5\left(x^4-6\right)^6\right)$

$\csc\left(\frac{x}{2}\right)-2=0$

$\frac{732av^2}{21v}$