$\left(\frac{ax}{5}\sqrt{108a^4}b^2x\right)$

$\left(3x+2\right)\left(3x-x^2+4\right)$

$\frac{x^2-4}{5ax-10a}$

$\lim_{x\to-3}\frac{x-3}{4-\sqrt{2x+22}}$

$\left(1-\cos\left(\theta\:\right)\right)\left(1+\sec\:\left(\theta\:\right)\right)\left(\cot\:\left(\theta\:\right)\right)$

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

$x^6+12^4+48^2+64$