$225+5y^2+y^4$

$\frac{d^3}{dx^3}\left(2x^2+5x\right)$

$\frac{1}{2cot\left(x\right)^{\left[2\right]}}$

$\int_{\frac{1}{2}}^3\frac{3}{\sqrt{5x^2-5}}dx$

$\int\left(1-x\right)e^{1+x}dx$

$\lim_{x\to-1}\left(\frac{x^3-3x-2}{x^3+x-10}\right)$

$\ln\left(x-31\right)-\ln\left(4-3x\right)=5\ln\left(2\right)$