$\left(8x-\frac{1}{8x}\right)\left(8x\:+\:\frac{1}{4x}\right)$

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

$5-\frac{2}{x^4}$

$\frac{\left(-2p^2\right)^4\left(3p^4\right)^2}{\left(-6p^3\right)^2}$

$\sqrt{\frac{x}{2}}-\sqrt{\frac{1}{2x}}-\sqrt{\frac{2}{x}}$

$\int\sqrt[6]{z^6+64}z^{5\:}dz$

$\left(3\:+\:v\right)\left(9\:-\:3v\:+\:v\right)$